256909440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{463}}^1$

素因数の和:519

約数の個数: 192

約数和(自身を含む): 871781760

約数和(自身を除く): 614872320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 289, 320, 340, 384, 408, 463, 480, 510, 544, 578, 640, 680, 816, 867, 926, 960, 1020, 1088, 1156, 1360, 1389, 1445, 1632, 1734, 1852, 1920, 2040, 2176, 2312, 2315, 2720, 2778, 2890, 3264, 3468, 3704, 4080, 4335, 4624, 4630, 5440, 5556, 5780, 6528, 6936, 6945, 7408, 7871, 8160, 8670, 9248, 9260, 10880, 11112, 11560, 13872, 13890, 14816, 15742, 16320, 17340, 18496, 18520, 22224, 23120, 23613, 27744, 27780, 29632, 31484, 32640, 34680, 36992, 37040, 39355, 44448, 46240, 47226, 55488, 55560, 59264, 62968, 69360, 74080, 78710, 88896, 92480, 94452, 110976, 111120, 118065, 125936, 133807, 138720, 148160, 157420, 177792, 184960, 188904, 222240, 236130, 251872, 267614, 277440, 296320, 314840, 377808, 401421, 444480, 472260, 503744, 535228, 554880, 629680, 669035, 755616, 802842, 888960, 944520, 1007488, 1070456, 1259360, 1338070, 1511232, 1605684, 1889040, 2007105, 2140912, 2518720, 2676140, 3022464, 3211368, 3778080, 4014210, 4281824, 5037440, 5352280, 6422736, 7556160, 8028420, 8563648, 10704560, 12845472, 15112320, 16056840, 17127296, 21409120, 25690944, 32113680, 42818240, 51381888, 64227360, 85636480, 128454720, 256909440]

約数ペア:

[(1, 256909440), (2, 128454720), (3, 85636480), (4, 64227360), (5, 51381888), (6, 42818240), (8, 32113680), (10, 25690944), (12, 21409120), (15, 17127296), (16, 16056840), (17, 15112320), (20, 12845472), (24, 10704560), (30, 8563648), (32, 8028420), (34, 7556160), (40, 6422736), (48, 5352280), (51, 5037440), (60, 4281824), (64, 4014210), (68, 3778080), (80, 3211368), (85, 3022464), (96, 2676140), (102, 2518720), (120, 2140912), (128, 2007105), (136, 1889040), (160, 1605684), (170, 1511232), (192, 1338070), (204, 1259360), (240, 1070456), (255, 1007488), (272, 944520), (289, 888960), (320, 802842), (340, 755616), (384, 669035), (408, 629680), (463, 554880), (480, 535228), (510, 503744), (544, 472260), (578, 444480), (640, 401421), (680, 377808), (816, 314840), (867, 296320), (926, 277440), (960, 267614), (1020, 251872), (1088, 236130), (1156, 222240), (1360, 188904), (1389, 184960), (1445, 177792), (1632, 157420), (1734, 148160), (1852, 138720), (1920, 133807), (2040, 125936), (2176, 118065), (2312, 111120), (2315, 110976), (2720, 94452), (2778, 92480), (2890, 88896), (3264, 78710), (3468, 74080), (3704, 69360), (4080, 62968), (4335, 59264), (4624, 55560), (4630, 55488), (5440, 47226), (5556, 46240), (5780, 44448), (6528, 39355), (6936, 37040), (6945, 36992), (7408, 34680), (7871, 32640), (8160, 31484), (8670, 29632), (9248, 27780), (9260, 27744), (10880, 23613), (11112, 23120), (11560, 22224), (13872, 18520), (13890, 18496), (14816, 17340), (15742, 16320)]