2912991980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1\times {\mathrm{3359}}^1$

素因数の和:3830

約数の個数: 48

約数和(自身を含む): 6184442880

約数和(自身を除く): 3271450900

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 331, 524, 655, 662, 1310, 1324, 1655, 2620, 3310, 3359, 6620, 6718, 13436, 16795, 33590, 43361, 67180, 86722, 173444, 216805, 433610, 440029, 867220, 880058, 1111829, 1760116, 2200145, 2223658, 4400290, 4447316, 5559145, 8800580, 11118290, 22236580, 145649599, 291299198, 582598396, 728247995, 1456495990, 2912991980]

約数ペア:

[(1, 2912991980), (2, 1456495990), (4, 728247995), (5, 582598396), (10, 291299198), (20, 145649599), (131, 22236580), (262, 11118290), (331, 8800580), (524, 5559145), (655, 4447316), (662, 4400290), (1310, 2223658), (1324, 2200145), (1655, 1760116), (2620, 1111829), (3310, 880058), (3359, 867220), (6620, 440029), (6718, 433610), (13436, 216805), (16795, 173444), (33590, 86722), (43361, 67180)]