18646810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:719

約数の個数: 64

約数和(自身を含む): 42706944

約数和(自身を除く): 24060134

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 62, 65, 70, 91, 130, 155, 182, 217, 310, 403, 434, 455, 661, 806, 910, 1085, 1322, 2015, 2170, 2821, 3305, 4030, 4627, 5642, 6610, 8593, 9254, 14105, 17186, 20491, 23135, 28210, 40982, 42965, 46270, 60151, 85930, 102455, 120302, 143437, 204910, 266383, 286874, 300755, 532766, 601510, 717185, 1331915, 1434370, 1864681, 2663830, 3729362, 9323405, 18646810]

約数ペア:

[(1, 18646810), (2, 9323405), (5, 3729362), (7, 2663830), (10, 1864681), (13, 1434370), (14, 1331915), (26, 717185), (31, 601510), (35, 532766), (62, 300755), (65, 286874), (70, 266383), (91, 204910), (130, 143437), (155, 120302), (182, 102455), (217, 85930), (310, 60151), (403, 46270), (434, 42965), (455, 40982), (661, 28210), (806, 23135), (910, 20491), (1085, 17186), (1322, 14105), (2015, 9254), (2170, 8593), (2821, 6610), (3305, 5642), (4030, 4627)]