31259280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:305

約数の個数: 160

約数和(自身を含む): 107243136

約数和(自身を除く): 75983856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 43, 48, 52, 60, 65, 78, 80, 86, 104, 120, 129, 130, 156, 172, 195, 208, 215, 233, 240, 258, 260, 312, 344, 390, 430, 466, 516, 520, 559, 624, 645, 688, 699, 780, 860, 932, 1032, 1040, 1118, 1165, 1290, 1398, 1560, 1677, 1720, 1864, 2064, 2236, 2330, 2580, 2795, 2796, 3029, 3120, 3354, 3440, 3495, 3728, 4472, 4660, 5160, 5590, 5592, 6058, 6708, 6990, 8385, 8944, 9087, 9320, 10019, 10320, 11180, 11184, 12116, 13416, 13980, 15145, 16770, 18174, 18640, 20038, 22360, 24232, 26832, 27960, 30057, 30290, 33540, 36348, 40076, 44720, 45435, 48464, 50095, 55920, 60114, 60580, 67080, 72696, 80152, 90870, 100190, 120228, 121160, 130247, 134160, 145392, 150285, 160304, 181740, 200380, 240456, 242320, 260494, 300570, 363480, 390741, 400760, 480912, 520988, 601140, 651235, 726960, 781482, 801520, 1041976, 1202280, 1302470, 1562964, 1953705, 2083952, 2404560, 2604940, 3125928, 3907410, 5209880, 6251856, 7814820, 10419760, 15629640, 31259280]

約数ペア:

[(1, 31259280), (2, 15629640), (3, 10419760), (4, 7814820), (5, 6251856), (6, 5209880), (8, 3907410), (10, 3125928), (12, 2604940), (13, 2404560), (15, 2083952), (16, 1953705), (20, 1562964), (24, 1302470), (26, 1202280), (30, 1041976), (39, 801520), (40, 781482), (43, 726960), (48, 651235), (52, 601140), (60, 520988), (65, 480912), (78, 400760), (80, 390741), (86, 363480), (104, 300570), (120, 260494), (129, 242320), (130, 240456), (156, 200380), (172, 181740), (195, 160304), (208, 150285), (215, 145392), (233, 134160), (240, 130247), (258, 121160), (260, 120228), (312, 100190), (344, 90870), (390, 80152), (430, 72696), (466, 67080), (516, 60580), (520, 60114), (559, 55920), (624, 50095), (645, 48464), (688, 45435), (699, 44720), (780, 40076), (860, 36348), (932, 33540), (1032, 30290), (1040, 30057), (1118, 27960), (1165, 26832), (1290, 24232), (1398, 22360), (1560, 20038), (1677, 18640), (1720, 18174), (1864, 16770), (2064, 15145), (2236, 13980), (2330, 13416), (2580, 12116), (2795, 11184), (2796, 11180), (3029, 10320), (3120, 10019), (3354, 9320), (3440, 9087), (3495, 8944), (3728, 8385), (4472, 6990), (4660, 6708), (5160, 6058), (5590, 5592)]