197121560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2239}}^1$

素因数の和:2352

約数の個数: 64

約数和(自身を含む): 464486400

約数和(自身を除く): 267364840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 1240, 1420, 2201, 2239, 2840, 4402, 4478, 8804, 8956, 11005, 11195, 17608, 17912, 22010, 22390, 44020, 44780, 69409, 88040, 89560, 138818, 158969, 277636, 317938, 347045, 555272, 635876, 694090, 794845, 1271752, 1388180, 1589690, 2776360, 3179380, 4928039, 6358760, 9856078, 19712156, 24640195, 39424312, 49280390, 98560780, 197121560]

約数ペア:

[(1, 197121560), (2, 98560780), (4, 49280390), (5, 39424312), (8, 24640195), (10, 19712156), (20, 9856078), (31, 6358760), (40, 4928039), (62, 3179380), (71, 2776360), (124, 1589690), (142, 1388180), (155, 1271752), (248, 794845), (284, 694090), (310, 635876), (355, 555272), (568, 347045), (620, 317938), (710, 277636), (1240, 158969), (1420, 138818), (2201, 89560), (2239, 88040), (2840, 69409), (4402, 44780), (4478, 44020), (8804, 22390), (8956, 22010), (11005, 17912), (11195, 17608)]