20123866920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{701669}}^1$

素因数の和:701922

約数の個数: 64

約数和(自身を含む): 60624288000

約数和(自身を除く): 40500421080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 717, 956, 1195, 1434, 1912, 2390, 2868, 3585, 4780, 5736, 7170, 9560, 14340, 28680, 701669, 1403338, 2105007, 2806676, 3508345, 4210014, 5613352, 7016690, 8420028, 10525035, 14033380, 16840056, 21050070, 28066760, 42100140, 84200280, 167698891, 335397782, 503096673, 670795564, 838494455, 1006193346, 1341591128, 1676988910, 2012386692, 2515483365, 3353977820, 4024773384, 5030966730, 6707955640, 10061933460, 20123866920]

約数ペア:

[(1, 20123866920), (2, 10061933460), (3, 6707955640), (4, 5030966730), (5, 4024773384), (6, 3353977820), (8, 2515483365), (10, 2012386692), (12, 1676988910), (15, 1341591128), (20, 1006193346), (24, 838494455), (30, 670795564), (40, 503096673), (60, 335397782), (120, 167698891), (239, 84200280), (478, 42100140), (717, 28066760), (956, 21050070), (1195, 16840056), (1434, 14033380), (1912, 10525035), (2390, 8420028), (2868, 7016690), (3585, 5613352), (4780, 4210014), (5736, 3508345), (7170, 2806676), (9560, 2105007), (14340, 1403338), (28680, 701669)]