10800400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 29275904

約数和(自身を除く): 18475504

約数列:

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

約数ペア:

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