20187960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12941}}^1$

素因数の和:12968

約数の個数: 64

約数和(自身を含む): 65227680

約数和(自身を除く): 45039720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12941, 25882, 38823, 51764, 64705, 77646, 103528, 129410, 155292, 168233, 194115, 258820, 310584, 336466, 388230, 504699, 517640, 672932, 776460, 841165, 1009398, 1345864, 1552920, 1682330, 2018796, 2523495, 3364660, 4037592, 5046990, 6729320, 10093980, 20187960]

約数ペア:

[(1, 20187960), (2, 10093980), (3, 6729320), (4, 5046990), (5, 4037592), (6, 3364660), (8, 2523495), (10, 2018796), (12, 1682330), (13, 1552920), (15, 1345864), (20, 1009398), (24, 841165), (26, 776460), (30, 672932), (39, 517640), (40, 504699), (52, 388230), (60, 336466), (65, 310584), (78, 258820), (104, 194115), (120, 168233), (130, 155292), (156, 129410), (195, 103528), (260, 77646), (312, 64705), (390, 51764), (520, 38823), (780, 25882), (1560, 12941)]