31886540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{541}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 76851264

約数和(自身を除く): 44964724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 541, 842, 1082, 1684, 2105, 2164, 2705, 2947, 3787, 4210, 5410, 5894, 7574, 8420, 10820, 11788, 14735, 15148, 18935, 29470, 37870, 58940, 75740, 227761, 455522, 911044, 1138805, 1594327, 2277610, 3188654, 4555220, 6377308, 7971635, 15943270, 31886540]

約数ペア:

[(1, 31886540), (2, 15943270), (4, 7971635), (5, 6377308), (7, 4555220), (10, 3188654), (14, 2277610), (20, 1594327), (28, 1138805), (35, 911044), (70, 455522), (140, 227761), (421, 75740), (541, 58940), (842, 37870), (1082, 29470), (1684, 18935), (2105, 15148), (2164, 14735), (2705, 11788), (2947, 10820), (3787, 8420), (4210, 7574), (5410, 5894)]