261805440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1$

素因数の和:669

約数の個数: 256

約数和(自身を含む): 953104320

約数和(自身を除く): 691298880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 64, 65, 68, 78, 80, 85, 96, 102, 104, 120, 128, 130, 136, 156, 160, 170, 192, 195, 204, 208, 221, 240, 255, 260, 272, 312, 320, 340, 384, 390, 408, 416, 442, 480, 510, 520, 544, 617, 624, 640, 663, 680, 780, 816, 832, 884, 960, 1020, 1040, 1088, 1105, 1234, 1248, 1326, 1360, 1560, 1632, 1664, 1768, 1851, 1920, 2040, 2080, 2176, 2210, 2468, 2496, 2652, 2720, 3085, 3120, 3264, 3315, 3536, 3702, 4080, 4160, 4420, 4936, 4992, 5304, 5440, 6170, 6240, 6528, 6630, 7072, 7404, 8021, 8160, 8320, 8840, 9255, 9872, 10489, 10608, 10880, 12340, 12480, 13260, 14144, 14808, 16042, 16320, 17680, 18510, 19744, 20978, 21216, 24063, 24680, 24960, 26520, 28288, 29616, 31467, 32084, 32640, 35360, 37020, 39488, 40105, 41956, 42432, 48126, 49360, 52445, 53040, 59232, 62934, 64168, 70720, 74040, 78976, 80210, 83912, 84864, 96252, 98720, 104890, 106080, 118464, 120315, 125868, 128336, 136357, 141440, 148080, 157335, 160420, 167824, 192504, 197440, 209780, 212160, 236928, 240630, 251736, 256672, 272714, 296160, 314670, 320840, 335648, 385008, 394880, 409071, 419560, 424320, 481260, 503472, 513344, 545428, 592320, 629340, 641680, 671296, 681785, 770016, 818142, 839120, 962520, 1006944, 1026688, 1090856, 1184640, 1258680, 1283360, 1342592, 1363570, 1540032, 1636284, 1678240, 1925040, 2013888, 2045355, 2181712, 2517360, 2566720, 2727140, 3080064, 3272568, 3356480, 3850080, 4027776, 4090710, 4363424, 5034720, 5133440, 5454280, 6545136, 6712960, 7700160, 8181420, 8726848, 10069440, 10908560, 13090272, 15400320, 16362840, 17453696, 20138880, 21817120, 26180544, 32725680, 43634240, 52361088, 65451360, 87268480, 130902720, 261805440]

約数ペア:

[(1, 261805440), (2, 130902720), (3, 87268480), (4, 65451360), (5, 52361088), (6, 43634240), (8, 32725680), (10, 26180544), (12, 21817120), (13, 20138880), (15, 17453696), (16, 16362840), (17, 15400320), (20, 13090272), (24, 10908560), (26, 10069440), (30, 8726848), (32, 8181420), (34, 7700160), (39, 6712960), (40, 6545136), (48, 5454280), (51, 5133440), (52, 5034720), (60, 4363424), (64, 4090710), (65, 4027776), (68, 3850080), (78, 3356480), (80, 3272568), (85, 3080064), (96, 2727140), (102, 2566720), (104, 2517360), (120, 2181712), (128, 2045355), (130, 2013888), (136, 1925040), (156, 1678240), (160, 1636284), (170, 1540032), (192, 1363570), (195, 1342592), (204, 1283360), (208, 1258680), (221, 1184640), (240, 1090856), (255, 1026688), (260, 1006944), (272, 962520), (312, 839120), (320, 818142), (340, 770016), (384, 681785), (390, 671296), (408, 641680), (416, 629340), (442, 592320), (480, 545428), (510, 513344), (520, 503472), (544, 481260), (617, 424320), (624, 419560), (640, 409071), (663, 394880), (680, 385008), (780, 335648), (816, 320840), (832, 314670), (884, 296160), (960, 272714), (1020, 256672), (1040, 251736), (1088, 240630), (1105, 236928), (1234, 212160), (1248, 209780), (1326, 197440), (1360, 192504), (1560, 167824), (1632, 160420), (1664, 157335), (1768, 148080), (1851, 141440), (1920, 136357), (2040, 128336), (2080, 125868), (2176, 120315), (2210, 118464), (2468, 106080), (2496, 104890), (2652, 98720), (2720, 96252), (3085, 84864), (3120, 83912), (3264, 80210), (3315, 78976), (3536, 74040), (3702, 70720), (4080, 64168), (4160, 62934), (4420, 59232), (4936, 53040), (4992, 52445), (5304, 49360), (5440, 48126), (6170, 42432), (6240, 41956), (6528, 40105), (6630, 39488), (7072, 37020), (7404, 35360), (8021, 32640), (8160, 32084), (8320, 31467), (8840, 29616), (9255, 28288), (9872, 26520), (10489, 24960), (10608, 24680), (10880, 24063), (12340, 21216), (12480, 20978), (13260, 19744), (14144, 18510), (14808, 17680), (16042, 16320)]