15780821756

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{103813}}^1$

素因数の和:103974

約数の個数: 48

約数和(自身を含む): 32439798720

約数和(自身を除く): 16658976964

約数列:

[1, 2, 4, 7, 14, 28, 61, 89, 122, 178, 244, 356, 427, 623, 854, 1246, 1708, 2492, 5429, 10858, 21716, 38003, 76006, 103813, 152012, 207626, 415252, 726691, 1453382, 2906764, 6332593, 9239357, 12665186, 18478714, 25330372, 36957428, 44328151, 64675499, 88656302, 129350998, 177312604, 258701996, 563600777, 1127201554, 2254403108, 3945205439, 7890410878, 15780821756]

約数ペア:

[(1, 15780821756), (2, 7890410878), (4, 3945205439), (7, 2254403108), (14, 1127201554), (28, 563600777), (61, 258701996), (89, 177312604), (122, 129350998), (178, 88656302), (244, 64675499), (356, 44328151), (427, 36957428), (623, 25330372), (854, 18478714), (1246, 12665186), (1708, 9239357), (2492, 6332593), (5429, 2906764), (10858, 1453382), (21716, 726691), (38003, 415252), (76006, 207626), (103813, 152012)]