15260980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1787}}^1$

素因数の和:1864

約数の個数: 48

約数和(自身を含む): 37247616

約数和(自身を除く): 21986636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 1787, 2135, 3574, 4270, 7148, 8540, 8935, 12509, 17870, 25018, 35740, 50036, 62545, 109007, 125090, 218014, 250180, 436028, 545035, 763049, 1090070, 1526098, 2180140, 3052196, 3815245, 7630490, 15260980]

約数ペア:

[(1, 15260980), (2, 7630490), (4, 3815245), (5, 3052196), (7, 2180140), (10, 1526098), (14, 1090070), (20, 763049), (28, 545035), (35, 436028), (61, 250180), (70, 218014), (122, 125090), (140, 109007), (244, 62545), (305, 50036), (427, 35740), (610, 25018), (854, 17870), (1220, 12509), (1708, 8935), (1787, 8540), (2135, 7148), (3574, 4270)]