210819980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{25523}}^1$

素因数の和:25598

約数の個数: 48

約数和(自身を含む): 514563840

約数和(自身を除く): 303743860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 4130, 8260, 25523, 51046, 102092, 127615, 178661, 255230, 357322, 510460, 714644, 893305, 1505857, 1786610, 3011714, 3573220, 6023428, 7529285, 10540999, 15058570, 21081998, 30117140, 42163996, 52704995, 105409990, 210819980]

約数ペア:

[(1, 210819980), (2, 105409990), (4, 52704995), (5, 42163996), (7, 30117140), (10, 21081998), (14, 15058570), (20, 10540999), (28, 7529285), (35, 6023428), (59, 3573220), (70, 3011714), (118, 1786610), (140, 1505857), (236, 893305), (295, 714644), (413, 510460), (590, 357322), (826, 255230), (1180, 178661), (1652, 127615), (2065, 102092), (4130, 51046), (8260, 25523)]