1889772560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{2749}}^1$

素因数の和:3436

約数の個数: 80

約数和(自身を含む): 4740582000

約数和(自身を除く): 2850809440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 661, 1040, 1322, 2644, 2749, 3305, 5288, 5498, 6610, 8593, 10576, 10996, 13220, 13745, 17186, 21992, 26440, 27490, 34372, 35737, 42965, 43984, 52880, 54980, 68744, 71474, 85930, 109960, 137488, 142948, 171860, 178685, 219920, 285896, 343720, 357370, 571792, 687440, 714740, 1429480, 1817089, 2858960, 3634178, 7268356, 9085445, 14536712, 18170890, 23622157, 29073424, 36341780, 47244314, 72683560, 94488628, 118110785, 145367120, 188977256, 236221570, 377954512, 472443140, 944886280, 1889772560]

約数ペア:

[(1, 1889772560), (2, 944886280), (4, 472443140), (5, 377954512), (8, 236221570), (10, 188977256), (13, 145367120), (16, 118110785), (20, 94488628), (26, 72683560), (40, 47244314), (52, 36341780), (65, 29073424), (80, 23622157), (104, 18170890), (130, 14536712), (208, 9085445), (260, 7268356), (520, 3634178), (661, 2858960), (1040, 1817089), (1322, 1429480), (2644, 714740), (2749, 687440), (3305, 571792), (5288, 357370), (5498, 343720), (6610, 285896), (8593, 219920), (10576, 178685), (10996, 171860), (13220, 142948), (13745, 137488), (17186, 109960), (21992, 85930), (26440, 71474), (27490, 68744), (34372, 54980), (35737, 52880), (42965, 43984)]