2018903960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1231039}}^1$

素因数の和:1231091

約数の個数: 32

約数和(自身を含む): 4653331200

約数和(自身を除く): 2634427240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1231039, 2462078, 4924156, 6155195, 9848312, 12310390, 24620780, 49241560, 50472599, 100945198, 201890396, 252362995, 403780792, 504725990, 1009451980, 2018903960]

約数ペア:

[(1, 2018903960), (2, 1009451980), (4, 504725990), (5, 403780792), (8, 252362995), (10, 201890396), (20, 100945198), (40, 50472599), (41, 49241560), (82, 24620780), (164, 12310390), (205, 9848312), (328, 6155195), (410, 4924156), (820, 2462078), (1640, 1231039)]