30755780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 72394560

約数和(自身を除く): 41638780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 179, 220, 242, 284, 355, 358, 484, 605, 710, 716, 781, 895, 1210, 1420, 1562, 1790, 1969, 2420, 3124, 3580, 3905, 3938, 7810, 7876, 8591, 9845, 12709, 15620, 17182, 19690, 21659, 25418, 34364, 39380, 42955, 43318, 50836, 63545, 85910, 86636, 108295, 127090, 139799, 171820, 216590, 254180, 279598, 433180, 559196, 698995, 1397990, 1537789, 2795980, 3075578, 6151156, 7688945, 15377890, 30755780]

約数ペア:

[(1, 30755780), (2, 15377890), (4, 7688945), (5, 6151156), (10, 3075578), (11, 2795980), (20, 1537789), (22, 1397990), (44, 698995), (55, 559196), (71, 433180), (110, 279598), (121, 254180), (142, 216590), (179, 171820), (220, 139799), (242, 127090), (284, 108295), (355, 86636), (358, 85910), (484, 63545), (605, 50836), (710, 43318), (716, 42955), (781, 39380), (895, 34364), (1210, 25418), (1420, 21659), (1562, 19690), (1790, 17182), (1969, 15620), (2420, 12709), (3124, 9845), (3580, 8591), (3905, 7876), (3938, 7810)]