831122460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{659621}}^1$

素因数の和:659643

約数の個数: 72

約数和(自身を含む): 2881228896

約数和(自身を除く): 2050106436

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 659621, 1319242, 1978863, 2638484, 3298105, 3957726, 4617347, 5936589, 6596210, 7915452, 9234694, 9894315, 11873178, 13192420, 13852041, 18469388, 19788630, 23086735, 23746356, 27704082, 29682945, 39577260, 41556123, 46173470, 55408164, 59365890, 69260205, 83112246, 92346940, 118731780, 138520410, 166224492, 207780615, 277040820, 415561230, 831122460]

約数ペア:

[(1, 831122460), (2, 415561230), (3, 277040820), (4, 207780615), (5, 166224492), (6, 138520410), (7, 118731780), (9, 92346940), (10, 83112246), (12, 69260205), (14, 59365890), (15, 55408164), (18, 46173470), (20, 41556123), (21, 39577260), (28, 29682945), (30, 27704082), (35, 23746356), (36, 23086735), (42, 19788630), (45, 18469388), (60, 13852041), (63, 13192420), (70, 11873178), (84, 9894315), (90, 9234694), (105, 7915452), (126, 6596210), (140, 5936589), (180, 4617347), (210, 3957726), (252, 3298105), (315, 2638484), (420, 1978863), (630, 1319242), (1260, 659621)]