20187982068

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{150329}}^1$

素因数の和:150405

約数の個数: 72

約数和(自身を含む): 51319054080

約数和(自身を除く): 31131072012

約数列:

[1, 2, 3, 4, 6, 12, 19, 31, 38, 57, 62, 76, 93, 114, 124, 186, 228, 361, 372, 589, 722, 1083, 1178, 1444, 1767, 2166, 2356, 3534, 4332, 7068, 11191, 22382, 33573, 44764, 67146, 134292, 150329, 300658, 450987, 601316, 901974, 1803948, 2856251, 4660199, 5712502, 8568753, 9320398, 11425004, 13980597, 17137506, 18640796, 27961194, 34275012, 54268769, 55922388, 88543781, 108537538, 162806307, 177087562, 217075076, 265631343, 325612614, 354175124, 531262686, 651225228, 1062525372, 1682331839, 3364663678, 5046995517, 6729327356, 10093991034, 20187982068]

約数ペア:

[(1, 20187982068), (2, 10093991034), (3, 6729327356), (4, 5046995517), (6, 3364663678), (12, 1682331839), (19, 1062525372), (31, 651225228), (38, 531262686), (57, 354175124), (62, 325612614), (76, 265631343), (93, 217075076), (114, 177087562), (124, 162806307), (186, 108537538), (228, 88543781), (361, 55922388), (372, 54268769), (589, 34275012), (722, 27961194), (1083, 18640796), (1178, 17137506), (1444, 13980597), (1767, 11425004), (2166, 9320398), (2356, 8568753), (3534, 5712502), (4332, 4660199), (7068, 2856251), (11191, 1803948), (22382, 901974), (33573, 601316), (44764, 450987), (67146, 300658), (134292, 150329)]