87216920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{467}}^1$

素因数の和:537

約数の個数: 128

約数和(自身を含む): 242611200

約数和(自身を除く): 155394280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 115, 116, 140, 145, 161, 184, 203, 230, 232, 280, 290, 322, 406, 460, 467, 580, 644, 667, 805, 812, 920, 934, 1015, 1160, 1288, 1334, 1610, 1624, 1868, 2030, 2335, 2668, 3220, 3269, 3335, 3736, 4060, 4669, 4670, 5336, 6440, 6538, 6670, 8120, 9338, 9340, 10741, 13076, 13340, 13543, 16345, 18676, 18680, 21482, 23345, 26152, 26680, 27086, 32690, 37352, 42964, 46690, 53705, 54172, 65380, 67715, 75187, 85928, 93380, 94801, 107410, 108344, 130760, 135430, 150374, 186760, 189602, 214820, 270860, 300748, 311489, 375935, 379204, 429640, 474005, 541720, 601496, 622978, 751870, 758408, 948010, 1245956, 1503740, 1557445, 1896020, 2180423, 2491912, 3007480, 3114890, 3792040, 4360846, 6229780, 8721692, 10902115, 12459560, 17443384, 21804230, 43608460, 87216920]

約数ペア:

[(1, 87216920), (2, 43608460), (4, 21804230), (5, 17443384), (7, 12459560), (8, 10902115), (10, 8721692), (14, 6229780), (20, 4360846), (23, 3792040), (28, 3114890), (29, 3007480), (35, 2491912), (40, 2180423), (46, 1896020), (56, 1557445), (58, 1503740), (70, 1245956), (92, 948010), (115, 758408), (116, 751870), (140, 622978), (145, 601496), (161, 541720), (184, 474005), (203, 429640), (230, 379204), (232, 375935), (280, 311489), (290, 300748), (322, 270860), (406, 214820), (460, 189602), (467, 186760), (580, 150374), (644, 135430), (667, 130760), (805, 108344), (812, 107410), (920, 94801), (934, 93380), (1015, 85928), (1160, 75187), (1288, 67715), (1334, 65380), (1610, 54172), (1624, 53705), (1868, 46690), (2030, 42964), (2335, 37352), (2668, 32690), (3220, 27086), (3269, 26680), (3335, 26152), (3736, 23345), (4060, 21482), (4669, 18680), (4670, 18676), (5336, 16345), (6440, 13543), (6538, 13340), (6670, 13076), (8120, 10741), (9338, 9340)]