78148720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{461}}^1$

素因数の和:650

約数の個数: 80

約数和(自身を含む): 197299872

約数和(自身を除く): 119151152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 163, 208, 260, 326, 461, 520, 652, 815, 922, 1040, 1304, 1630, 1844, 2119, 2305, 2608, 3260, 3688, 4238, 4610, 5993, 6520, 7376, 8476, 9220, 10595, 11986, 13040, 16952, 18440, 21190, 23972, 29965, 33904, 36880, 42380, 47944, 59930, 75143, 84760, 95888, 119860, 150286, 169520, 239720, 300572, 375715, 479440, 601144, 751430, 976859, 1202288, 1502860, 1953718, 3005720, 3907436, 4884295, 6011440, 7814872, 9768590, 15629744, 19537180, 39074360, 78148720]

約数ペア:

[(1, 78148720), (2, 39074360), (4, 19537180), (5, 15629744), (8, 9768590), (10, 7814872), (13, 6011440), (16, 4884295), (20, 3907436), (26, 3005720), (40, 1953718), (52, 1502860), (65, 1202288), (80, 976859), (104, 751430), (130, 601144), (163, 479440), (208, 375715), (260, 300572), (326, 239720), (461, 169520), (520, 150286), (652, 119860), (815, 95888), (922, 84760), (1040, 75143), (1304, 59930), (1630, 47944), (1844, 42380), (2119, 36880), (2305, 33904), (2608, 29965), (3260, 23972), (3688, 21190), (4238, 18440), (4610, 16952), (5993, 13040), (6520, 11986), (7376, 10595), (8476, 9220)]