31555980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 102246144

約数和(自身を除く): 70690164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 81, 86, 90, 108, 129, 135, 151, 162, 172, 180, 215, 243, 258, 270, 302, 324, 387, 405, 430, 453, 486, 516, 540, 604, 645, 755, 774, 810, 860, 906, 972, 1161, 1215, 1290, 1359, 1510, 1548, 1620, 1812, 1935, 2265, 2322, 2430, 2580, 2718, 3020, 3483, 3870, 4077, 4530, 4644, 4860, 5436, 5805, 6493, 6795, 6966, 7740, 8154, 9060, 10449, 11610, 12231, 12986, 13590, 13932, 16308, 17415, 19479, 20385, 20898, 23220, 24462, 25972, 27180, 32465, 34830, 36693, 38958, 40770, 41796, 48924, 52245, 58437, 61155, 64930, 69660, 73386, 77916, 81540, 97395, 104490, 116874, 122310, 129860, 146772, 175311, 183465, 194790, 208980, 233748, 244620, 292185, 350622, 366930, 389580, 525933, 584370, 701244, 733860, 876555, 1051866, 1168740, 1577799, 1753110, 2103732, 2629665, 3155598, 3506220, 5259330, 6311196, 7888995, 10518660, 15777990, 31555980]

約数ペア:

[(1, 31555980), (2, 15777990), (3, 10518660), (4, 7888995), (5, 6311196), (6, 5259330), (9, 3506220), (10, 3155598), (12, 2629665), (15, 2103732), (18, 1753110), (20, 1577799), (27, 1168740), (30, 1051866), (36, 876555), (43, 733860), (45, 701244), (54, 584370), (60, 525933), (81, 389580), (86, 366930), (90, 350622), (108, 292185), (129, 244620), (135, 233748), (151, 208980), (162, 194790), (172, 183465), (180, 175311), (215, 146772), (243, 129860), (258, 122310), (270, 116874), (302, 104490), (324, 97395), (387, 81540), (405, 77916), (430, 73386), (453, 69660), (486, 64930), (516, 61155), (540, 58437), (604, 52245), (645, 48924), (755, 41796), (774, 40770), (810, 38958), (860, 36693), (906, 34830), (972, 32465), (1161, 27180), (1215, 25972), (1290, 24462), (1359, 23220), (1510, 20898), (1548, 20385), (1620, 19479), (1812, 17415), (1935, 16308), (2265, 13932), (2322, 13590), (2430, 12986), (2580, 12231), (2718, 11610), (3020, 10449), (3483, 9060), (3870, 8154), (4077, 7740), (4530, 6966), (4644, 6795), (4860, 6493), (5436, 5805)]