15555890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 33868800

約数和(自身を除く): 18312910

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 79, 97, 145, 158, 194, 203, 290, 395, 406, 485, 553, 679, 790, 970, 1015, 1106, 1358, 2030, 2291, 2765, 2813, 3395, 4582, 5530, 5626, 6790, 7663, 11455, 14065, 15326, 16037, 19691, 22910, 28130, 32074, 38315, 39382, 53641, 76630, 80185, 98455, 107282, 160370, 196910, 222227, 268205, 444454, 536410, 1111135, 1555589, 2222270, 3111178, 7777945, 15555890]

約数ペア:

[(1, 15555890), (2, 7777945), (5, 3111178), (7, 2222270), (10, 1555589), (14, 1111135), (29, 536410), (35, 444454), (58, 268205), (70, 222227), (79, 196910), (97, 160370), (145, 107282), (158, 98455), (194, 80185), (203, 76630), (290, 53641), (395, 39382), (406, 38315), (485, 32074), (553, 28130), (679, 22910), (790, 19691), (970, 16037), (1015, 15326), (1106, 14065), (1358, 11455), (2030, 7663), (2291, 6790), (2765, 5626), (2813, 5530), (3395, 4582)]