20512991512

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{410063}}^1$

素因数の和:410132

約数の個数: 48

約数和(自身を含む): 42773775840

約数和(自身を除く): 22260784328

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 169, 296, 338, 481, 676, 962, 1352, 1924, 3848, 6253, 12506, 25012, 50024, 410063, 820126, 1640252, 3280504, 5330819, 10661638, 15172331, 21323276, 30344662, 42646552, 60689324, 69300647, 121378648, 138601294, 197240303, 277202588, 394480606, 554405176, 788961212, 1577922424, 2564123939, 5128247878, 10256495756, 20512991512]

約数ペア:

[(1, 20512991512), (2, 10256495756), (4, 5128247878), (8, 2564123939), (13, 1577922424), (26, 788961212), (37, 554405176), (52, 394480606), (74, 277202588), (104, 197240303), (148, 138601294), (169, 121378648), (296, 69300647), (338, 60689324), (481, 42646552), (676, 30344662), (962, 21323276), (1352, 15172331), (1924, 10661638), (3848, 5330819), (6253, 3280504), (12506, 1640252), (25012, 820126), (50024, 410063)]