18727590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{347}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 51715584

約数和(自身を除く): 32987994

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 257, 347, 514, 694, 771, 1041, 1285, 1542, 1735, 1799, 2082, 2429, 2570, 3470, 3598, 3855, 4858, 5205, 5397, 7287, 7710, 8995, 10410, 10794, 12145, 14574, 17990, 24290, 26985, 36435, 53970, 72870, 89179, 178358, 267537, 445895, 535074, 624253, 891790, 1248506, 1337685, 1872759, 2675370, 3121265, 3745518, 6242530, 9363795, 18727590]

約数ペア:

[(1, 18727590), (2, 9363795), (3, 6242530), (5, 3745518), (6, 3121265), (7, 2675370), (10, 1872759), (14, 1337685), (15, 1248506), (21, 891790), (30, 624253), (35, 535074), (42, 445895), (70, 267537), (105, 178358), (210, 89179), (257, 72870), (347, 53970), (514, 36435), (694, 26985), (771, 24290), (1041, 17990), (1285, 14574), (1542, 12145), (1735, 10794), (1799, 10410), (2082, 8995), (2429, 7710), (2570, 7287), (3470, 5397), (3598, 5205), (3855, 4858)]