199804640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{178397}}^1$

素因数の和:178419

約数の個数: 48

約数和(自身を含む): 539475552

約数和(自身を除く): 339670912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 178397, 356794, 713588, 891985, 1248779, 1427176, 1783970, 2497558, 2854352, 3567940, 4995116, 5708704, 6243895, 7135880, 9990232, 12487790, 14271760, 19980464, 24975580, 28543520, 39960928, 49951160, 99902320, 199804640]

約数ペア:

[(1, 199804640), (2, 99902320), (4, 49951160), (5, 39960928), (7, 28543520), (8, 24975580), (10, 19980464), (14, 14271760), (16, 12487790), (20, 9990232), (28, 7135880), (32, 6243895), (35, 5708704), (40, 4995116), (56, 3567940), (70, 2854352), (80, 2497558), (112, 1783970), (140, 1427176), (160, 1248779), (224, 891985), (280, 713588), (560, 356794), (1120, 178397)]