28163940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67057}}^1$

素因数の和:67076

約数の個数: 48

約数和(自身を含む): 90125952

約数和(自身を除く): 61962012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67057, 134114, 201171, 268228, 335285, 402342, 469399, 670570, 804684, 938798, 1005855, 1341140, 1408197, 1877596, 2011710, 2346995, 2816394, 4023420, 4693990, 5632788, 7040985, 9387980, 14081970, 28163940]

約数ペア:

[(1, 28163940), (2, 14081970), (3, 9387980), (4, 7040985), (5, 5632788), (6, 4693990), (7, 4023420), (10, 2816394), (12, 2346995), (14, 2011710), (15, 1877596), (20, 1408197), (21, 1341140), (28, 1005855), (30, 938798), (35, 804684), (42, 670570), (60, 469399), (70, 402342), (84, 335285), (105, 268228), (140, 201171), (210, 134114), (420, 67057)]