18999400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 51871680

約数和(自身を除く): 32872280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 41, 50, 56, 70, 82, 100, 140, 164, 175, 200, 205, 280, 287, 328, 331, 350, 410, 574, 662, 700, 820, 1025, 1148, 1324, 1400, 1435, 1640, 1655, 2050, 2296, 2317, 2648, 2870, 3310, 4100, 4634, 5740, 6620, 7175, 8200, 8275, 9268, 11480, 11585, 13240, 13571, 14350, 16550, 18536, 23170, 27142, 28700, 33100, 46340, 54284, 57400, 57925, 66200, 67855, 92680, 94997, 108568, 115850, 135710, 189994, 231700, 271420, 339275, 379988, 463400, 474985, 542840, 678550, 759976, 949970, 1357100, 1899940, 2374925, 2714200, 3799880, 4749850, 9499700, 18999400]

約数ペア:

[(1, 18999400), (2, 9499700), (4, 4749850), (5, 3799880), (7, 2714200), (8, 2374925), (10, 1899940), (14, 1357100), (20, 949970), (25, 759976), (28, 678550), (35, 542840), (40, 474985), (41, 463400), (50, 379988), (56, 339275), (70, 271420), (82, 231700), (100, 189994), (140, 135710), (164, 115850), (175, 108568), (200, 94997), (205, 92680), (280, 67855), (287, 66200), (328, 57925), (331, 57400), (350, 54284), (410, 46340), (574, 33100), (662, 28700), (700, 27142), (820, 23170), (1025, 18536), (1148, 16550), (1324, 14350), (1400, 13571), (1435, 13240), (1640, 11585), (1655, 11480), (2050, 9268), (2296, 8275), (2317, 8200), (2648, 7175), (2870, 6620), (3310, 5740), (4100, 4634)]