28077420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66851}}^1$

素因数の和:66870

約数の個数: 48

約数和(自身を含む): 89849088

約数和(自身を除く): 61771668

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, 66851, 133702, 200553, 267404, 334255, 401106, 467957, 668510, 802212, 935914, 1002765, 1337020, 1403871, 1871828, 2005530, 2339785, 2807742, 4011060, 4679570, 5615484, 7019355, 9359140, 14038710, 28077420]

約数ペア:

[(1, 28077420), (2, 14038710), (3, 9359140), (4, 7019355), (5, 5615484), (6, 4679570), (7, 4011060), (10, 2807742), (12, 2339785), (14, 2005530), (15, 1871828), (20, 1403871), (21, 1337020), (28, 1002765), (30, 935914), (35, 802212), (42, 668510), (60, 467957), (70, 401106), (84, 334255), (105, 267404), (140, 200553), (210, 133702), (420, 66851)]