20790744

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1801}}^1$

素因数の和:1860

約数の個数: 64

約数和(自身を含む): 57519840

約数和(自身を除く): 36729096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 37, 39, 52, 74, 78, 104, 111, 148, 156, 222, 296, 312, 444, 481, 888, 962, 1443, 1801, 1924, 2886, 3602, 3848, 5403, 5772, 7204, 10806, 11544, 14408, 21612, 23413, 43224, 46826, 66637, 70239, 93652, 133274, 140478, 187304, 199911, 266548, 280956, 399822, 533096, 561912, 799644, 866281, 1599288, 1732562, 2598843, 3465124, 5197686, 6930248, 10395372, 20790744]

約数ペア:

[(1, 20790744), (2, 10395372), (3, 6930248), (4, 5197686), (6, 3465124), (8, 2598843), (12, 1732562), (13, 1599288), (24, 866281), (26, 799644), (37, 561912), (39, 533096), (52, 399822), (74, 280956), (78, 266548), (104, 199911), (111, 187304), (148, 140478), (156, 133274), (222, 93652), (296, 70239), (312, 66637), (444, 46826), (481, 43224), (888, 23413), (962, 21612), (1443, 14408), (1801, 11544), (1924, 10806), (2886, 7204), (3602, 5772), (3848, 5403)]