20307706540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{17539}}^1$

素因数の和:17855

約数の個数: 96

約数和(自身を含む): 49151289600

約数和(自身を除く): 28843583060

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 277, 380, 418, 554, 836, 1045, 1108, 1385, 2090, 2770, 3047, 4180, 5263, 5540, 6094, 10526, 12188, 15235, 17539, 21052, 26315, 30470, 35078, 52630, 57893, 60940, 70156, 87695, 105260, 115786, 175390, 192929, 231572, 289465, 333241, 350780, 385858, 578930, 666482, 771716, 964645, 1157860, 1332964, 1666205, 1929290, 3332410, 3665651, 3858580, 4858303, 6664820, 7331302, 9716606, 14662604, 18328255, 19433212, 24291515, 36656510, 48583030, 53441333, 73313020, 92307757, 97166060, 106882666, 184615514, 213765332, 267206665, 369231028, 461538785, 534413330, 923077570, 1015385327, 1068826660, 1846155140, 2030770654, 4061541308, 5076926635, 10153853270, 20307706540]

約数ペア:

[(1, 20307706540), (2, 10153853270), (4, 5076926635), (5, 4061541308), (10, 2030770654), (11, 1846155140), (19, 1068826660), (20, 1015385327), (22, 923077570), (38, 534413330), (44, 461538785), (55, 369231028), (76, 267206665), (95, 213765332), (110, 184615514), (190, 106882666), (209, 97166060), (220, 92307757), (277, 73313020), (380, 53441333), (418, 48583030), (554, 36656510), (836, 24291515), (1045, 19433212), (1108, 18328255), (1385, 14662604), (2090, 9716606), (2770, 7331302), (3047, 6664820), (4180, 4858303), (5263, 3858580), (5540, 3665651), (6094, 3332410), (10526, 1929290), (12188, 1666205), (15235, 1332964), (17539, 1157860), (21052, 964645), (26315, 771716), (30470, 666482), (35078, 578930), (52630, 385858), (57893, 350780), (60940, 333241), (70156, 289465), (87695, 231572), (105260, 192929), (115786, 175390)]