8489996820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{664319}}^1$

素因数の和:664405

約数の個数: 72

約数和(自身を含む): 26115747840

約数和(自身を除く): 17625751020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 664319, 1328638, 1992957, 2657276, 3321595, 3985914, 5978871, 6643190, 7971828, 9964785, 11957742, 13286380, 19929570, 23915484, 29894355, 39859140, 47166649, 59788710, 94333298, 119577420, 141499947, 188666596, 235833245, 282999894, 424499841, 471666490, 565999788, 707499735, 848999682, 943332980, 1414999470, 1697999364, 2122499205, 2829998940, 4244998410, 8489996820]

約数ペア:

[(1, 8489996820), (2, 4244998410), (3, 2829998940), (4, 2122499205), (5, 1697999364), (6, 1414999470), (9, 943332980), (10, 848999682), (12, 707499735), (15, 565999788), (18, 471666490), (20, 424499841), (30, 282999894), (36, 235833245), (45, 188666596), (60, 141499947), (71, 119577420), (90, 94333298), (142, 59788710), (180, 47166649), (213, 39859140), (284, 29894355), (355, 23915484), (426, 19929570), (639, 13286380), (710, 11957742), (852, 9964785), (1065, 7971828), (1278, 6643190), (1420, 5978871), (2130, 3985914), (2556, 3321595), (3195, 2657276), (4260, 1992957), (6390, 1328638), (12780, 664319)]