78715520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9461}}^1$

素因数の和:9493

約数の個数: 64

約数和(自身を含む): 202676040

約数和(自身を除く): 123960520

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, 9461, 18922, 37844, 47305, 75688, 94610, 122993, 151376, 189220, 245986, 302752, 378440, 491972, 605504, 614965, 756880, 983944, 1211008, 1229930, 1513760, 1967888, 2459860, 3027520, 3935776, 4919720, 6055040, 7871552, 9839440, 15743104, 19678880, 39357760, 78715520]

約数ペア:

[(1, 78715520), (2, 39357760), (4, 19678880), (5, 15743104), (8, 9839440), (10, 7871552), (13, 6055040), (16, 4919720), (20, 3935776), (26, 3027520), (32, 2459860), (40, 1967888), (52, 1513760), (64, 1229930), (65, 1211008), (80, 983944), (104, 756880), (128, 614965), (130, 605504), (160, 491972), (208, 378440), (260, 302752), (320, 245986), (416, 189220), (520, 151376), (640, 122993), (832, 94610), (1040, 75688), (1664, 47305), (2080, 37844), (4160, 18922), (8320, 9461)]