19975470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:545

約数の個数: 64

約数和(自身を含む): 50651136

約数和(自身を除く): 30675666

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 47, 62, 93, 94, 141, 155, 186, 235, 282, 310, 457, 465, 470, 705, 914, 930, 1371, 1410, 1457, 2285, 2742, 2914, 4371, 4570, 6855, 7285, 8742, 13710, 14167, 14570, 21479, 21855, 28334, 42501, 42958, 43710, 64437, 70835, 85002, 107395, 128874, 141670, 212505, 214790, 322185, 425010, 644370, 665849, 1331698, 1997547, 3329245, 3995094, 6658490, 9987735, 19975470]

約数ペア:

[(1, 19975470), (2, 9987735), (3, 6658490), (5, 3995094), (6, 3329245), (10, 1997547), (15, 1331698), (30, 665849), (31, 644370), (47, 425010), (62, 322185), (93, 214790), (94, 212505), (141, 141670), (155, 128874), (186, 107395), (235, 85002), (282, 70835), (310, 64437), (457, 43710), (465, 42958), (470, 42501), (705, 28334), (914, 21855), (930, 21479), (1371, 14570), (1410, 14167), (1457, 13710), (2285, 8742), (2742, 7285), (2914, 6855), (4371, 4570)]