7953920

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:275

約数の個数: 80

約数和(自身を含む): 20623680

約数和(自身を除く): 12669760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 239, 256, 260, 320, 416, 478, 512, 520, 640, 832, 956, 1040, 1195, 1280, 1664, 1912, 2080, 2390, 2560, 3107, 3328, 3824, 4160, 4780, 6214, 6656, 7648, 8320, 9560, 12428, 15296, 15535, 16640, 19120, 24856, 30592, 31070, 33280, 38240, 49712, 61184, 62140, 76480, 99424, 122368, 124280, 152960, 198848, 248560, 305920, 397696, 497120, 611840, 795392, 994240, 1590784, 1988480, 3976960, 7953920]

約数ペア:

[(1, 7953920), (2, 3976960), (4, 1988480), (5, 1590784), (8, 994240), (10, 795392), (13, 611840), (16, 497120), (20, 397696), (26, 305920), (32, 248560), (40, 198848), (52, 152960), (64, 124280), (65, 122368), (80, 99424), (104, 76480), (128, 62140), (130, 61184), (160, 49712), (208, 38240), (239, 33280), (256, 31070), (260, 30592), (320, 24856), (416, 19120), (478, 16640), (512, 15535), (520, 15296), (640, 12428), (832, 9560), (956, 8320), (1040, 7648), (1195, 6656), (1280, 6214), (1664, 4780), (1912, 4160), (2080, 3824), (2390, 3328), (2560, 3107)]