2212780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 4967424

約数和(自身を除く): 2754644

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 83, 86, 124, 155, 166, 172, 215, 310, 332, 415, 430, 620, 830, 860, 1333, 1660, 2573, 2666, 3569, 5146, 5332, 6665, 7138, 10292, 12865, 13330, 14276, 17845, 25730, 26660, 35690, 51460, 71380, 110639, 221278, 442556, 553195, 1106390, 2212780]

約数ペア:

[(1, 2212780), (2, 1106390), (4, 553195), (5, 442556), (10, 221278), (20, 110639), (31, 71380), (43, 51460), (62, 35690), (83, 26660), (86, 25730), (124, 17845), (155, 14276), (166, 13330), (172, 12865), (215, 10292), (310, 7138), (332, 6665), (415, 5332), (430, 5146), (620, 3569), (830, 2666), (860, 2573), (1333, 1660)]