881335444

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:685

約数の個数: 72

約数和(自身を含む): 1796457600

約数和(自身を除く): 915122156

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 239, 242, 401, 418, 478, 484, 802, 836, 956, 1604, 2299, 2629, 4411, 4541, 4598, 5258, 7619, 8822, 9082, 9196, 10516, 15238, 17644, 18164, 28919, 30476, 48521, 49951, 57838, 83809, 95839, 97042, 99902, 115676, 167618, 191678, 194084, 199804, 335236, 383356, 549461, 921899, 1054229, 1098922, 1820941, 1843798, 2108458, 2197844, 3641882, 3687596, 4216916, 7283764, 11596519, 20030351, 23193038, 40060702, 46386076, 80121404, 220333861, 440667722, 881335444]

約数ペア:

[(1, 881335444), (2, 440667722), (4, 220333861), (11, 80121404), (19, 46386076), (22, 40060702), (38, 23193038), (44, 20030351), (76, 11596519), (121, 7283764), (209, 4216916), (239, 3687596), (242, 3641882), (401, 2197844), (418, 2108458), (478, 1843798), (484, 1820941), (802, 1098922), (836, 1054229), (956, 921899), (1604, 549461), (2299, 383356), (2629, 335236), (4411, 199804), (4541, 194084), (4598, 191678), (5258, 167618), (7619, 115676), (8822, 99902), (9082, 97042), (9196, 95839), (10516, 83809), (15238, 57838), (17644, 49951), (18164, 48521), (28919, 30476)]