31890780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{809}}^1$

素因数の和:900

約数の個数: 96

約数和(自身を含む): 100699200

約数和(自身を除く): 68808420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 73, 90, 108, 135, 146, 180, 219, 270, 292, 365, 438, 540, 657, 730, 809, 876, 1095, 1314, 1460, 1618, 1971, 2190, 2427, 2628, 3236, 3285, 3942, 4045, 4380, 4854, 6570, 7281, 7884, 8090, 9708, 9855, 12135, 13140, 14562, 16180, 19710, 21843, 24270, 29124, 36405, 39420, 43686, 48540, 59057, 72810, 87372, 109215, 118114, 145620, 177171, 218430, 236228, 295285, 354342, 436860, 531513, 590570, 708684, 885855, 1063026, 1181140, 1594539, 1771710, 2126052, 2657565, 3189078, 3543420, 5315130, 6378156, 7972695, 10630260, 15945390, 31890780]

約数ペア:

[(1, 31890780), (2, 15945390), (3, 10630260), (4, 7972695), (5, 6378156), (6, 5315130), (9, 3543420), (10, 3189078), (12, 2657565), (15, 2126052), (18, 1771710), (20, 1594539), (27, 1181140), (30, 1063026), (36, 885855), (45, 708684), (54, 590570), (60, 531513), (73, 436860), (90, 354342), (108, 295285), (135, 236228), (146, 218430), (180, 177171), (219, 145620), (270, 118114), (292, 109215), (365, 87372), (438, 72810), (540, 59057), (657, 48540), (730, 43686), (809, 39420), (876, 36405), (1095, 29124), (1314, 24270), (1460, 21843), (1618, 19710), (1971, 16180), (2190, 14562), (2427, 13140), (2628, 12135), (3236, 9855), (3285, 9708), (3942, 8090), (4045, 7884), (4380, 7281), (4854, 6570)]