399403710

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2503}}^1$

素因数の和:2719

約数の個数: 80

約数和(自身を含む): 1079834976

約数和(自身を除く): 680431266

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 197, 270, 394, 405, 591, 810, 985, 1182, 1773, 1970, 2503, 2955, 3546, 5006, 5319, 5910, 7509, 8865, 10638, 12515, 15018, 15957, 17730, 22527, 25030, 26595, 31914, 37545, 45054, 53190, 67581, 75090, 79785, 112635, 135162, 159570, 202743, 225270, 337905, 405486, 493091, 675810, 986182, 1013715, 1479273, 2027430, 2465455, 2958546, 4437819, 4930910, 7396365, 8875638, 13313457, 14792730, 22189095, 26626914, 39940371, 44378190, 66567285, 79880742, 133134570, 199701855, 399403710]

約数ペア:

[(1, 399403710), (2, 199701855), (3, 133134570), (5, 79880742), (6, 66567285), (9, 44378190), (10, 39940371), (15, 26626914), (18, 22189095), (27, 14792730), (30, 13313457), (45, 8875638), (54, 7396365), (81, 4930910), (90, 4437819), (135, 2958546), (162, 2465455), (197, 2027430), (270, 1479273), (394, 1013715), (405, 986182), (591, 675810), (810, 493091), (985, 405486), (1182, 337905), (1773, 225270), (1970, 202743), (2503, 159570), (2955, 135162), (3546, 112635), (5006, 79785), (5319, 75090), (5910, 67581), (7509, 53190), (8865, 45054), (10638, 37545), (12515, 31914), (15018, 26595), (15957, 25030), (17730, 22527)]