21600800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 59496192

約数和(自身を除く): 37895392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 67, 80, 100, 104, 124, 130, 134, 155, 160, 200, 208, 248, 260, 268, 310, 325, 335, 400, 403, 416, 496, 520, 536, 620, 650, 670, 775, 800, 806, 871, 992, 1040, 1072, 1240, 1300, 1340, 1550, 1612, 1675, 1742, 2015, 2077, 2080, 2144, 2480, 2600, 2680, 3100, 3224, 3350, 3484, 4030, 4154, 4355, 4960, 5200, 5360, 6200, 6448, 6700, 6968, 8060, 8308, 8710, 10075, 10385, 10400, 10720, 12400, 12896, 13400, 13936, 16120, 16616, 17420, 20150, 20770, 21775, 24800, 26800, 27001, 27872, 32240, 33232, 34840, 40300, 41540, 43550, 51925, 53600, 54002, 64480, 66464, 69680, 80600, 83080, 87100, 103850, 108004, 135005, 139360, 161200, 166160, 174200, 207700, 216008, 270010, 322400, 332320, 348400, 415400, 432016, 540020, 675025, 696800, 830800, 864032, 1080040, 1350050, 1661600, 2160080, 2700100, 4320160, 5400200, 10800400, 21600800]

約数ペア:

[(1, 21600800), (2, 10800400), (4, 5400200), (5, 4320160), (8, 2700100), (10, 2160080), (13, 1661600), (16, 1350050), (20, 1080040), (25, 864032), (26, 830800), (31, 696800), (32, 675025), (40, 540020), (50, 432016), (52, 415400), (62, 348400), (65, 332320), (67, 322400), (80, 270010), (100, 216008), (104, 207700), (124, 174200), (130, 166160), (134, 161200), (155, 139360), (160, 135005), (200, 108004), (208, 103850), (248, 87100), (260, 83080), (268, 80600), (310, 69680), (325, 66464), (335, 64480), (400, 54002), (403, 53600), (416, 51925), (496, 43550), (520, 41540), (536, 40300), (620, 34840), (650, 33232), (670, 32240), (775, 27872), (800, 27001), (806, 26800), (871, 24800), (992, 21775), (1040, 20770), (1072, 20150), (1240, 17420), (1300, 16616), (1340, 16120), (1550, 13936), (1612, 13400), (1675, 12896), (1742, 12400), (2015, 10720), (2077, 10400), (2080, 10385), (2144, 10075), (2480, 8710), (2600, 8308), (2680, 8060), (3100, 6968), (3224, 6700), (3350, 6448), (3484, 6200), (4030, 5360), (4154, 5200), (4355, 4960)]