157738880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18959}}^1$

素因数の和:18991

約数の個数: 64

約数和(自身を含む): 406123200

約数和(自身を除く): 248384320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 18959, 37918, 75836, 94795, 151672, 189590, 246467, 303344, 379180, 492934, 606688, 758360, 985868, 1213376, 1232335, 1516720, 1971736, 2426752, 2464670, 3033440, 3943472, 4929340, 6066880, 7886944, 9858680, 12133760, 15773888, 19717360, 31547776, 39434720, 78869440, 157738880]

約数ペア:

[(1, 157738880), (2, 78869440), (4, 39434720), (5, 31547776), (8, 19717360), (10, 15773888), (13, 12133760), (16, 9858680), (20, 7886944), (26, 6066880), (32, 4929340), (40, 3943472), (52, 3033440), (64, 2464670), (65, 2426752), (80, 1971736), (104, 1516720), (128, 1232335), (130, 1213376), (160, 985868), (208, 758360), (260, 606688), (320, 492934), (416, 379180), (520, 303344), (640, 246467), (832, 189590), (1040, 151672), (1664, 94795), (2080, 75836), (4160, 37918), (8320, 18959)]