20330420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 48620544

約数和(自身を除く): 28290124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 271, 310, 341, 484, 542, 605, 620, 682, 1084, 1210, 1355, 1364, 1705, 2420, 2710, 2981, 3410, 3751, 5420, 5962, 6820, 7502, 8401, 11924, 14905, 15004, 16802, 18755, 29810, 32791, 33604, 37510, 42005, 59620, 65582, 75020, 84010, 92411, 131164, 163955, 168020, 184822, 327910, 369644, 462055, 655820, 924110, 1016521, 1848220, 2033042, 4066084, 5082605, 10165210, 20330420]

約数ペア:

[(1, 20330420), (2, 10165210), (4, 5082605), (5, 4066084), (10, 2033042), (11, 1848220), (20, 1016521), (22, 924110), (31, 655820), (44, 462055), (55, 369644), (62, 327910), (110, 184822), (121, 168020), (124, 163955), (155, 131164), (220, 92411), (242, 84010), (271, 75020), (310, 65582), (341, 59620), (484, 42005), (542, 37510), (605, 33604), (620, 32791), (682, 29810), (1084, 18755), (1210, 16802), (1355, 15004), (1364, 14905), (1705, 11924), (2420, 8401), (2710, 7502), (2981, 6820), (3410, 5962), (3751, 5420)]