81775890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{129803}}^1$

素因数の和:129823

約数の個数: 48

約数和(自身を含む): 242993088

約数和(自身を除く): 161217198

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 129803, 259606, 389409, 649015, 778818, 908621, 1168227, 1298030, 1817242, 1947045, 2336454, 2725863, 3894090, 4543105, 5451726, 5841135, 8177589, 9086210, 11682270, 13629315, 16355178, 27258630, 40887945, 81775890]

約数ペア:

[(1, 81775890), (2, 40887945), (3, 27258630), (5, 16355178), (6, 13629315), (7, 11682270), (9, 9086210), (10, 8177589), (14, 5841135), (15, 5451726), (18, 4543105), (21, 3894090), (30, 2725863), (35, 2336454), (42, 1947045), (45, 1817242), (63, 1298030), (70, 1168227), (90, 908621), (105, 778818), (126, 649015), (210, 389409), (315, 259606), (630, 129803)]