127986400

素因数分解:

$2^5\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1019}}^1$

素因数の和:1196

約数の個数: 72

約数和(自身を含む): 314745480

約数和(自身を除く): 186759080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 157, 160, 200, 314, 400, 628, 785, 800, 1019, 1256, 1570, 2038, 2512, 3140, 3925, 4076, 5024, 5095, 6280, 7850, 8152, 10190, 12560, 15700, 16304, 20380, 25120, 25475, 31400, 32608, 40760, 50950, 62800, 81520, 101900, 125600, 159983, 163040, 203800, 319966, 407600, 639932, 799915, 815200, 1279864, 1599830, 2559728, 3199660, 3999575, 5119456, 6399320, 7999150, 12798640, 15998300, 25597280, 31996600, 63993200, 127986400]

約数ペア:

[(1, 127986400), (2, 63993200), (4, 31996600), (5, 25597280), (8, 15998300), (10, 12798640), (16, 7999150), (20, 6399320), (25, 5119456), (32, 3999575), (40, 3199660), (50, 2559728), (80, 1599830), (100, 1279864), (157, 815200), (160, 799915), (200, 639932), (314, 407600), (400, 319966), (628, 203800), (785, 163040), (800, 159983), (1019, 125600), (1256, 101900), (1570, 81520), (2038, 62800), (2512, 50950), (3140, 40760), (3925, 32608), (4076, 31400), (5024, 25475), (5095, 25120), (6280, 20380), (7850, 16304), (8152, 15700), (10190, 12560)]