31551115520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{795139}}^1$

素因数の和:795191

約数の個数: 72

約数和(自身を含む): 78012775680

約数和(自身を除く): 46461660160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 795139, 1590278, 3180556, 3975695, 6361112, 7951390, 12722224, 15902780, 24649309, 25444448, 31805560, 49298618, 50888896, 63611120, 98597236, 101777792, 123246545, 127222240, 197194472, 203555584, 246493090, 254444480, 394388944, 492986180, 508888960, 788777888, 985972360, 1017777920, 1577555776, 1971944720, 3155111552, 3943889440, 6310223104, 7887778880, 15775557760, 31551115520]

約数ペア:

[(1, 31551115520), (2, 15775557760), (4, 7887778880), (5, 6310223104), (8, 3943889440), (10, 3155111552), (16, 1971944720), (20, 1577555776), (31, 1017777920), (32, 985972360), (40, 788777888), (62, 508888960), (64, 492986180), (80, 394388944), (124, 254444480), (128, 246493090), (155, 203555584), (160, 197194472), (248, 127222240), (256, 123246545), (310, 101777792), (320, 98597236), (496, 63611120), (620, 50888896), (640, 49298618), (992, 31805560), (1240, 25444448), (1280, 24649309), (1984, 15902780), (2480, 12722224), (3968, 7951390), (4960, 6361112), (7936, 3975695), (9920, 3180556), (19840, 1590278), (39680, 795139)]