31038120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 128

約数和(自身を含む): 107136000

約数和(自身を除く): 76097880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 696, 783, 870, 991, 1044, 1080, 1160, 1305, 1566, 1740, 1982, 2088, 2610, 2973, 3132, 3480, 3915, 3964, 4955, 5220, 5946, 6264, 7830, 7928, 8919, 9910, 10440, 11892, 14865, 15660, 17838, 19820, 23784, 26757, 28739, 29730, 31320, 35676, 39640, 44595, 53514, 57478, 59460, 71352, 86217, 89190, 107028, 114956, 118920, 133785, 143695, 172434, 178380, 214056, 229912, 258651, 267570, 287390, 344868, 356760, 431085, 517302, 535140, 574780, 689736, 775953, 862170, 1034604, 1070280, 1149560, 1293255, 1551906, 1724340, 2069208, 2586510, 3103812, 3448680, 3879765, 5173020, 6207624, 7759530, 10346040, 15519060, 31038120]

約数ペア:

[(1, 31038120), (2, 15519060), (3, 10346040), (4, 7759530), (5, 6207624), (6, 5173020), (8, 3879765), (9, 3448680), (10, 3103812), (12, 2586510), (15, 2069208), (18, 1724340), (20, 1551906), (24, 1293255), (27, 1149560), (29, 1070280), (30, 1034604), (36, 862170), (40, 775953), (45, 689736), (54, 574780), (58, 535140), (60, 517302), (72, 431085), (87, 356760), (90, 344868), (108, 287390), (116, 267570), (120, 258651), (135, 229912), (145, 214056), (174, 178380), (180, 172434), (216, 143695), (232, 133785), (261, 118920), (270, 114956), (290, 107028), (348, 89190), (360, 86217), (435, 71352), (522, 59460), (540, 57478), (580, 53514), (696, 44595), (783, 39640), (870, 35676), (991, 31320), (1044, 29730), (1080, 28739), (1160, 26757), (1305, 23784), (1566, 19820), (1740, 17838), (1982, 15660), (2088, 14865), (2610, 11892), (2973, 10440), (3132, 9910), (3480, 8919), (3915, 7928), (3964, 7830), (4955, 6264), (5220, 5946)]