20476560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6563}}^1$

素因数の和:6592

約数の個数: 80

約数和(自身を含む): 68370624

約数和(自身を除く): 47894064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6563, 13126, 19689, 26252, 32815, 39378, 52504, 65630, 78756, 85319, 98445, 105008, 131260, 157512, 170638, 196890, 255957, 262520, 315024, 341276, 393780, 426595, 511914, 525040, 682552, 787560, 853190, 1023828, 1279785, 1365104, 1575120, 1706380, 2047656, 2559570, 3412760, 4095312, 5119140, 6825520, 10238280, 20476560]

約数ペア:

[(1, 20476560), (2, 10238280), (3, 6825520), (4, 5119140), (5, 4095312), (6, 3412760), (8, 2559570), (10, 2047656), (12, 1706380), (13, 1575120), (15, 1365104), (16, 1279785), (20, 1023828), (24, 853190), (26, 787560), (30, 682552), (39, 525040), (40, 511914), (48, 426595), (52, 393780), (60, 341276), (65, 315024), (78, 262520), (80, 255957), (104, 196890), (120, 170638), (130, 157512), (156, 131260), (195, 105008), (208, 98445), (240, 85319), (260, 78756), (312, 65630), (390, 52504), (520, 39378), (624, 32815), (780, 26252), (1040, 19689), (1560, 13126), (3120, 6563)]