20870616

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 56689920

約数和(自身を除く): 35819304

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 151, 156, 302, 312, 443, 453, 604, 886, 906, 1208, 1329, 1772, 1812, 1963, 2658, 3544, 3624, 3926, 5316, 5759, 5889, 7852, 10632, 11518, 11778, 15704, 17277, 23036, 23556, 34554, 46072, 47112, 66893, 69108, 133786, 138216, 200679, 267572, 401358, 535144, 802716, 869609, 1605432, 1739218, 2608827, 3478436, 5217654, 6956872, 10435308, 20870616]

約数ペア:

[(1, 20870616), (2, 10435308), (3, 6956872), (4, 5217654), (6, 3478436), (8, 2608827), (12, 1739218), (13, 1605432), (24, 869609), (26, 802716), (39, 535144), (52, 401358), (78, 267572), (104, 200679), (151, 138216), (156, 133786), (302, 69108), (312, 66893), (443, 47112), (453, 46072), (604, 34554), (886, 23556), (906, 23036), (1208, 17277), (1329, 15704), (1772, 11778), (1812, 11518), (1963, 10632), (2658, 7852), (3544, 5889), (3624, 5759), (3926, 5316)]