20175866425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{8191}}^1$

素因数の和:8291

約数の個数: 72

約数和(自身を含む): 30114643968

約数和(自身を除く): 9938777543

約数列:

[1, 5, 11, 13, 25, 53, 55, 65, 143, 169, 265, 275, 325, 583, 689, 715, 845, 1325, 1859, 2915, 3445, 3575, 4225, 7579, 8191, 8957, 9295, 14575, 17225, 37895, 40955, 44785, 46475, 90101, 98527, 106483, 189475, 204775, 223925, 434123, 450505, 492635, 532415, 1171313, 1384279, 2170615, 2252525, 2463175, 2662075, 4775353, 5643599, 5856565, 6921395, 10853075, 15227069, 23876765, 28217995, 29282825, 34606975, 62079589, 73366787, 76135345, 119383825, 141089975, 310397945, 366833935, 380676725, 807034657, 1551989725, 1834169675, 4035173285, 20175866425]

約数ペア:

[(1, 20175866425), (5, 4035173285), (11, 1834169675), (13, 1551989725), (25, 807034657), (53, 380676725), (55, 366833935), (65, 310397945), (143, 141089975), (169, 119383825), (265, 76135345), (275, 73366787), (325, 62079589), (583, 34606975), (689, 29282825), (715, 28217995), (845, 23876765), (1325, 15227069), (1859, 10853075), (2915, 6921395), (3445, 5856565), (3575, 5643599), (4225, 4775353), (7579, 2662075), (8191, 2463175), (8957, 2252525), (9295, 2170615), (14575, 1384279), (17225, 1171313), (37895, 532415), (40955, 492635), (44785, 450505), (46475, 434123), (90101, 223925), (98527, 204775), (106483, 189475)]