287531820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^2$

素因数の和:500

約数の個数: 108

約数和(自身を含む): 904298304

約数和(自身を除く): 616766484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 227, 279, 310, 372, 454, 465, 558, 620, 681, 908, 930, 1116, 1135, 1362, 1395, 1860, 2043, 2270, 2724, 2790, 3405, 4086, 4540, 5580, 6810, 7037, 8172, 10215, 13620, 14074, 20430, 21111, 28148, 35185, 40860, 42222, 51529, 63333, 70370, 84444, 103058, 105555, 126666, 140740, 154587, 206116, 211110, 253332, 257645, 309174, 316665, 422220, 463761, 515290, 618348, 633330, 772935, 927522, 1030580, 1266660, 1545870, 1597399, 1855044, 2318805, 3091740, 3194798, 4637610, 4792197, 6389596, 7986995, 9275220, 9584394, 14376591, 15973990, 19168788, 23960985, 28753182, 31947980, 47921970, 57506364, 71882955, 95843940, 143765910, 287531820]

約数ペア:

[(1, 287531820), (2, 143765910), (3, 95843940), (4, 71882955), (5, 57506364), (6, 47921970), (9, 31947980), (10, 28753182), (12, 23960985), (15, 19168788), (18, 15973990), (20, 14376591), (30, 9584394), (31, 9275220), (36, 7986995), (45, 6389596), (60, 4792197), (62, 4637610), (90, 3194798), (93, 3091740), (124, 2318805), (155, 1855044), (180, 1597399), (186, 1545870), (227, 1266660), (279, 1030580), (310, 927522), (372, 772935), (454, 633330), (465, 618348), (558, 515290), (620, 463761), (681, 422220), (908, 316665), (930, 309174), (1116, 257645), (1135, 253332), (1362, 211110), (1395, 206116), (1860, 154587), (2043, 140740), (2270, 126666), (2724, 105555), (2790, 103058), (3405, 84444), (4086, 70370), (4540, 63333), (5580, 51529), (6810, 42222), (7037, 40860), (8172, 35185), (10215, 28148), (13620, 21111), (14074, 20430)]