85371520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:394

約数の個数: 128

約数和(自身を含む): 227566080

約数和(自身を除く): 142194560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 331, 403, 416, 496, 520, 620, 640, 662, 806, 832, 992, 1040, 1240, 1324, 1612, 1655, 1664, 1984, 2015, 2080, 2480, 2648, 3224, 3310, 3968, 4030, 4160, 4303, 4960, 5296, 6448, 6620, 8060, 8320, 8606, 9920, 10261, 10592, 12896, 13240, 16120, 17212, 19840, 20522, 21184, 21515, 25792, 26480, 32240, 34424, 41044, 42368, 43030, 51305, 51584, 52960, 64480, 68848, 82088, 86060, 102610, 105920, 128960, 133393, 137696, 164176, 172120, 205220, 211840, 257920, 266786, 275392, 328352, 344240, 410440, 533572, 550784, 656704, 666965, 688480, 820880, 1067144, 1313408, 1333930, 1376960, 1641760, 2134288, 2667860, 2753920, 3283520, 4268576, 5335720, 6567040, 8537152, 10671440, 17074304, 21342880, 42685760, 85371520]

約数ペア:

[(1, 85371520), (2, 42685760), (4, 21342880), (5, 17074304), (8, 10671440), (10, 8537152), (13, 6567040), (16, 5335720), (20, 4268576), (26, 3283520), (31, 2753920), (32, 2667860), (40, 2134288), (52, 1641760), (62, 1376960), (64, 1333930), (65, 1313408), (80, 1067144), (104, 820880), (124, 688480), (128, 666965), (130, 656704), (155, 550784), (160, 533572), (208, 410440), (248, 344240), (260, 328352), (310, 275392), (320, 266786), (331, 257920), (403, 211840), (416, 205220), (496, 172120), (520, 164176), (620, 137696), (640, 133393), (662, 128960), (806, 105920), (832, 102610), (992, 86060), (1040, 82088), (1240, 68848), (1324, 64480), (1612, 52960), (1655, 51584), (1664, 51305), (1984, 43030), (2015, 42368), (2080, 41044), (2480, 34424), (2648, 32240), (3224, 26480), (3310, 25792), (3968, 21515), (4030, 21184), (4160, 20522), (4303, 19840), (4960, 17212), (5296, 16120), (6448, 13240), (6620, 12896), (8060, 10592), (8320, 10261), (8606, 9920)]