89345980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1231}}^1$

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 198696960

約数和(自身を除く): 109350980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 380, 382, 764, 955, 1231, 1910, 2462, 3629, 3820, 4924, 6155, 7258, 12310, 14516, 18145, 23389, 24620, 36290, 46778, 72580, 93556, 116945, 233890, 235121, 467780, 470242, 940484, 1175605, 2351210, 4467299, 4702420, 8934598, 17869196, 22336495, 44672990, 89345980]

約数ペア:

[(1, 89345980), (2, 44672990), (4, 22336495), (5, 17869196), (10, 8934598), (19, 4702420), (20, 4467299), (38, 2351210), (76, 1175605), (95, 940484), (190, 470242), (191, 467780), (380, 235121), (382, 233890), (764, 116945), (955, 93556), (1231, 72580), (1910, 46778), (2462, 36290), (3629, 24620), (3820, 23389), (4924, 18145), (6155, 14516), (7258, 12310)]