81720343380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{261271}}^1$

素因数の和:261697

約数の個数: 96

約数和(自身を含む): 247033721088

約数和(自身を除く): 165313377708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 401, 780, 802, 1203, 1604, 2005, 2406, 4010, 4812, 5213, 6015, 8020, 10426, 12030, 15639, 20852, 24060, 26065, 31278, 52130, 62556, 78195, 104260, 156390, 261271, 312780, 522542, 783813, 1045084, 1306355, 1567626, 2612710, 3135252, 3396523, 3919065, 5225420, 6793046, 7838130, 10189569, 13586092, 15676260, 16982615, 20379138, 33965230, 40758276, 50947845, 67930460, 101895690, 104769671, 203791380, 209539342, 314309013, 419078684, 523848355, 628618026, 1047696710, 1257236052, 1362005723, 1571545065, 2095393420, 2724011446, 3143090130, 4086017169, 5448022892, 6286180260, 6810028615, 8172034338, 13620057230, 16344068676, 20430085845, 27240114460, 40860171690, 81720343380]

約数ペア:

[(1, 81720343380), (2, 40860171690), (3, 27240114460), (4, 20430085845), (5, 16344068676), (6, 13620057230), (10, 8172034338), (12, 6810028615), (13, 6286180260), (15, 5448022892), (20, 4086017169), (26, 3143090130), (30, 2724011446), (39, 2095393420), (52, 1571545065), (60, 1362005723), (65, 1257236052), (78, 1047696710), (130, 628618026), (156, 523848355), (195, 419078684), (260, 314309013), (390, 209539342), (401, 203791380), (780, 104769671), (802, 101895690), (1203, 67930460), (1604, 50947845), (2005, 40758276), (2406, 33965230), (4010, 20379138), (4812, 16982615), (5213, 15676260), (6015, 13586092), (8020, 10189569), (10426, 7838130), (12030, 6793046), (15639, 5225420), (20852, 3919065), (24060, 3396523), (26065, 3135252), (31278, 2612710), (52130, 1567626), (62556, 1306355), (78195, 1045084), (104260, 783813), (156390, 522542), (261271, 312780)]