81851700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{38977}}^1$

素因数の和:39001

約数の個数: 72

約数和(自身を含む): 270663232

約数和(自身を除く): 188811532

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 38977, 77954, 116931, 155908, 194885, 233862, 272839, 389770, 467724, 545678, 584655, 779540, 818517, 974425, 1091356, 1169310, 1364195, 1637034, 1948850, 2338620, 2728390, 2923275, 3274068, 3897700, 4092585, 5456780, 5846550, 6820975, 8185170, 11693100, 13641950, 16370340, 20462925, 27283900, 40925850, 81851700]

約数ペア:

[(1, 81851700), (2, 40925850), (3, 27283900), (4, 20462925), (5, 16370340), (6, 13641950), (7, 11693100), (10, 8185170), (12, 6820975), (14, 5846550), (15, 5456780), (20, 4092585), (21, 3897700), (25, 3274068), (28, 2923275), (30, 2728390), (35, 2338620), (42, 1948850), (50, 1637034), (60, 1364195), (70, 1169310), (75, 1091356), (84, 974425), (100, 818517), (105, 779540), (140, 584655), (150, 545678), (175, 467724), (210, 389770), (300, 272839), (350, 233862), (420, 194885), (525, 155908), (700, 116931), (1050, 77954), (2100, 38977)]