20851290

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2663}}^1$

素因数の和:2708

約数の個数: 64

約数和(自身を含む): 57542400

約数和(自身を除く): 36691110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 435, 522, 783, 870, 1305, 1566, 2610, 2663, 3915, 5326, 7830, 7989, 13315, 15978, 23967, 26630, 39945, 47934, 71901, 77227, 79890, 119835, 143802, 154454, 231681, 239670, 359505, 386135, 463362, 695043, 719010, 772270, 1158405, 1390086, 2085129, 2316810, 3475215, 4170258, 6950430, 10425645, 20851290]

約数ペア:

[(1, 20851290), (2, 10425645), (3, 6950430), (5, 4170258), (6, 3475215), (9, 2316810), (10, 2085129), (15, 1390086), (18, 1158405), (27, 772270), (29, 719010), (30, 695043), (45, 463362), (54, 386135), (58, 359505), (87, 239670), (90, 231681), (135, 154454), (145, 143802), (174, 119835), (261, 79890), (270, 77227), (290, 71901), (435, 47934), (522, 39945), (783, 26630), (870, 23967), (1305, 15978), (1566, 13315), (2610, 7989), (2663, 7830), (3915, 5326)]