81699570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:317

約数の個数: 128

約数和(自身を含む): 231137280

約数和(自身を除く): 149437710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 43, 45, 54, 62, 86, 90, 93, 129, 135, 155, 186, 215, 227, 258, 270, 279, 310, 387, 430, 454, 465, 558, 645, 681, 774, 837, 930, 1135, 1161, 1290, 1333, 1362, 1395, 1674, 1935, 2043, 2270, 2322, 2666, 2790, 3405, 3870, 3999, 4086, 4185, 5805, 6129, 6665, 6810, 7037, 7998, 8370, 9761, 10215, 11610, 11997, 12258, 13330, 14074, 19522, 19995, 20430, 21111, 23994, 29283, 30645, 35185, 35991, 39990, 42222, 48805, 58566, 59985, 61290, 63333, 70370, 71982, 87849, 97610, 105555, 119970, 126666, 146415, 175698, 179955, 189999, 211110, 263547, 292830, 302591, 316665, 359910, 379998, 439245, 527094, 605182, 633330, 878490, 907773, 949995, 1317735, 1512955, 1815546, 1899990, 2635470, 2723319, 3025910, 4538865, 5446638, 8169957, 9077730, 13616595, 16339914, 27233190, 40849785, 81699570]

約数ペア:

[(1, 81699570), (2, 40849785), (3, 27233190), (5, 16339914), (6, 13616595), (9, 9077730), (10, 8169957), (15, 5446638), (18, 4538865), (27, 3025910), (30, 2723319), (31, 2635470), (43, 1899990), (45, 1815546), (54, 1512955), (62, 1317735), (86, 949995), (90, 907773), (93, 878490), (129, 633330), (135, 605182), (155, 527094), (186, 439245), (215, 379998), (227, 359910), (258, 316665), (270, 302591), (279, 292830), (310, 263547), (387, 211110), (430, 189999), (454, 179955), (465, 175698), (558, 146415), (645, 126666), (681, 119970), (774, 105555), (837, 97610), (930, 87849), (1135, 71982), (1161, 70370), (1290, 63333), (1333, 61290), (1362, 59985), (1395, 58566), (1674, 48805), (1935, 42222), (2043, 39990), (2270, 35991), (2322, 35185), (2666, 30645), (2790, 29283), (3405, 23994), (3870, 21111), (3999, 20430), (4086, 19995), (4185, 19522), (5805, 14074), (6129, 13330), (6665, 12258), (6810, 11997), (7037, 11610), (7998, 10215), (8370, 9761)]