128799840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20641}}^1$

素因数の和:20672

約数の個数: 96

約数和(自身を含む): 436949856

約数和(自身を除く): 308150016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 6240, 20641, 41282, 61923, 82564, 103205, 123846, 165128, 206410, 247692, 268333, 309615, 330256, 412820, 495384, 536666, 619230, 660512, 804999, 825640, 990768, 1073332, 1238460, 1341665, 1609998, 1651280, 1981536, 2146664, 2476920, 2683330, 3219996, 3302560, 4024995, 4293328, 4953840, 5366660, 6439992, 8049990, 8586656, 9907680, 10733320, 12879984, 16099980, 21466640, 25759968, 32199960, 42933280, 64399920, 128799840]

約数ペア:

[(1, 128799840), (2, 64399920), (3, 42933280), (4, 32199960), (5, 25759968), (6, 21466640), (8, 16099980), (10, 12879984), (12, 10733320), (13, 9907680), (15, 8586656), (16, 8049990), (20, 6439992), (24, 5366660), (26, 4953840), (30, 4293328), (32, 4024995), (39, 3302560), (40, 3219996), (48, 2683330), (52, 2476920), (60, 2146664), (65, 1981536), (78, 1651280), (80, 1609998), (96, 1341665), (104, 1238460), (120, 1073332), (130, 990768), (156, 825640), (160, 804999), (195, 660512), (208, 619230), (240, 536666), (260, 495384), (312, 412820), (390, 330256), (416, 309615), (480, 268333), (520, 247692), (624, 206410), (780, 165128), (1040, 123846), (1248, 103205), (1560, 82564), (2080, 61923), (3120, 41282), (6240, 20641)]