89706980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1951}}^1$

素因数の和:2001

約数の個数: 72

約数和(自身を含む): 218077440

約数和(自身を除く): 128370460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 1951, 2090, 2299, 2420, 3902, 4180, 4598, 7804, 9196, 9755, 11495, 19510, 21461, 22990, 37069, 39020, 42922, 45980, 74138, 85844, 107305, 148276, 185345, 214610, 236071, 370690, 407759, 429220, 472142, 741380, 815518, 944284, 1180355, 1631036, 2038795, 2360710, 4077590, 4485349, 4721420, 8155180, 8970698, 17941396, 22426745, 44853490, 89706980]

約数ペア:

[(1, 89706980), (2, 44853490), (4, 22426745), (5, 17941396), (10, 8970698), (11, 8155180), (19, 4721420), (20, 4485349), (22, 4077590), (38, 2360710), (44, 2038795), (55, 1631036), (76, 1180355), (95, 944284), (110, 815518), (121, 741380), (190, 472142), (209, 429220), (220, 407759), (242, 370690), (380, 236071), (418, 214610), (484, 185345), (605, 148276), (836, 107305), (1045, 85844), (1210, 74138), (1951, 45980), (2090, 42922), (2299, 39020), (2420, 37069), (3902, 22990), (4180, 21461), (4598, 19510), (7804, 11495), (9196, 9755)]