28785980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 64592640

約数和(自身を除く): 35806660

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1601, 1798, 3202, 3596, 4495, 6404, 8005, 8990, 16010, 17980, 32020, 46429, 49631, 92858, 99262, 185716, 198524, 232145, 248155, 464290, 496310, 928580, 992620, 1439299, 2878598, 5757196, 7196495, 14392990, 28785980]

約数ペア:

[(1, 28785980), (2, 14392990), (4, 7196495), (5, 5757196), (10, 2878598), (20, 1439299), (29, 992620), (31, 928580), (58, 496310), (62, 464290), (116, 248155), (124, 232145), (145, 198524), (155, 185716), (290, 99262), (310, 92858), (580, 49631), (620, 46429), (899, 32020), (1601, 17980), (1798, 16010), (3202, 8990), (3596, 8005), (4495, 6404)]