20176471120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{289559}}^1$

素因数の和:289652

約数の個数: 80

約数和(自身を含む): 51272968320

約数和(自身を除く): 31096497200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 1040, 1072, 1340, 1742, 2680, 3484, 4355, 5360, 6968, 8710, 13936, 17420, 34840, 69680, 289559, 579118, 1158236, 1447795, 2316472, 2895590, 3764267, 4632944, 5791180, 7528534, 11582360, 15057068, 18821335, 19400453, 23164720, 30114136, 37642670, 38800906, 60228272, 75285340, 77601812, 97002265, 150570680, 155203624, 194004530, 252205889, 301141360, 310407248, 388009060, 504411778, 776018120, 1008823556, 1261029445, 1552036240, 2017647112, 2522058890, 4035294224, 5044117780, 10088235560, 20176471120]

約数ペア:

[(1, 20176471120), (2, 10088235560), (4, 5044117780), (5, 4035294224), (8, 2522058890), (10, 2017647112), (13, 1552036240), (16, 1261029445), (20, 1008823556), (26, 776018120), (40, 504411778), (52, 388009060), (65, 310407248), (67, 301141360), (80, 252205889), (104, 194004530), (130, 155203624), (134, 150570680), (208, 97002265), (260, 77601812), (268, 75285340), (335, 60228272), (520, 38800906), (536, 37642670), (670, 30114136), (871, 23164720), (1040, 19400453), (1072, 18821335), (1340, 15057068), (1742, 11582360), (2680, 7528534), (3484, 5791180), (4355, 4632944), (5360, 3764267), (6968, 2895590), (8710, 2316472), (13936, 1447795), (17420, 1158236), (34840, 579118), (69680, 289559)]