20149770020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{240623}}^1$

素因数の和:240764

約数の個数: 48

約数和(自身を含む): 43658818560

約数和(自身を除く): 23509048540

約数列:

[1, 2, 4, 5, 10, 20, 53, 79, 106, 158, 212, 265, 316, 395, 530, 790, 1060, 1580, 4187, 8374, 16748, 20935, 41870, 83740, 240623, 481246, 962492, 1203115, 2406230, 4812460, 12753019, 19009217, 25506038, 38018434, 51012076, 63765095, 76036868, 95046085, 127530190, 190092170, 255060380, 380184340, 1007488501, 2014977002, 4029954004, 5037442505, 10074885010, 20149770020]

約数ペア:

[(1, 20149770020), (2, 10074885010), (4, 5037442505), (5, 4029954004), (10, 2014977002), (20, 1007488501), (53, 380184340), (79, 255060380), (106, 190092170), (158, 127530190), (212, 95046085), (265, 76036868), (316, 63765095), (395, 51012076), (530, 38018434), (790, 25506038), (1060, 19009217), (1580, 12753019), (4187, 4812460), (8374, 2406230), (16748, 1203115), (20935, 962492), (41870, 481246), (83740, 240623)]