389637760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:570

約数の個数: 128

約数和(自身を含む): 987033600

約数和(自身を除く): 597395840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 310, 320, 328, 410, 479, 496, 620, 640, 656, 820, 958, 992, 1240, 1271, 1312, 1640, 1916, 1984, 2395, 2480, 2542, 2624, 3280, 3832, 3968, 4790, 4960, 5084, 5248, 6355, 6560, 7664, 9580, 9920, 10168, 12710, 13120, 14849, 15328, 19160, 19639, 19840, 20336, 25420, 26240, 29698, 30656, 38320, 39278, 40672, 50840, 59396, 61312, 74245, 76640, 78556, 81344, 98195, 101680, 118792, 148490, 153280, 157112, 162688, 196390, 203360, 237584, 296980, 306560, 314224, 392780, 406720, 475168, 593960, 608809, 628448, 785560, 813440, 950336, 1187920, 1217618, 1256896, 1571120, 1900672, 2375840, 2435236, 2513792, 3044045, 3142240, 4751680, 4870472, 6088090, 6284480, 9503360, 9740944, 12176180, 12568960, 19481888, 24352360, 38963776, 48704720, 77927552, 97409440, 194818880, 389637760]

約数ペア:

[(1, 389637760), (2, 194818880), (4, 97409440), (5, 77927552), (8, 48704720), (10, 38963776), (16, 24352360), (20, 19481888), (31, 12568960), (32, 12176180), (40, 9740944), (41, 9503360), (62, 6284480), (64, 6088090), (80, 4870472), (82, 4751680), (124, 3142240), (128, 3044045), (155, 2513792), (160, 2435236), (164, 2375840), (205, 1900672), (248, 1571120), (310, 1256896), (320, 1217618), (328, 1187920), (410, 950336), (479, 813440), (496, 785560), (620, 628448), (640, 608809), (656, 593960), (820, 475168), (958, 406720), (992, 392780), (1240, 314224), (1271, 306560), (1312, 296980), (1640, 237584), (1916, 203360), (1984, 196390), (2395, 162688), (2480, 157112), (2542, 153280), (2624, 148490), (3280, 118792), (3832, 101680), (3968, 98195), (4790, 81344), (4960, 78556), (5084, 76640), (5248, 74245), (6355, 61312), (6560, 59396), (7664, 50840), (9580, 40672), (9920, 39278), (10168, 38320), (12710, 30656), (13120, 29698), (14849, 26240), (15328, 25420), (19160, 20336), (19639, 19840)]