31588540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 69400800

約数和(自身を除く): 37812260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 107, 116, 145, 214, 290, 428, 509, 535, 580, 1018, 1070, 2036, 2140, 2545, 3103, 5090, 6206, 10180, 12412, 14761, 15515, 29522, 31030, 54463, 59044, 62060, 73805, 108926, 147610, 217852, 272315, 295220, 544630, 1089260, 1579427, 3158854, 6317708, 7897135, 15794270, 31588540]

約数ペア:

[(1, 31588540), (2, 15794270), (4, 7897135), (5, 6317708), (10, 3158854), (20, 1579427), (29, 1089260), (58, 544630), (107, 295220), (116, 272315), (145, 217852), (214, 147610), (290, 108926), (428, 73805), (509, 62060), (535, 59044), (580, 54463), (1018, 31030), (1070, 29522), (2036, 15515), (2140, 14761), (2545, 12412), (3103, 10180), (5090, 6206)]