81565680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1033}}^1$

素因数の和:1103

約数の個数: 160

約数和(自身を含む): 295409664

約数和(自身を除く): 213843984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 280, 282, 329, 336, 376, 420, 470, 560, 564, 658, 705, 752, 840, 940, 987, 1033, 1128, 1316, 1410, 1645, 1680, 1880, 1974, 2066, 2256, 2632, 2820, 3099, 3290, 3760, 3948, 4132, 4935, 5165, 5264, 5640, 6198, 6580, 7231, 7896, 8264, 9870, 10330, 11280, 12396, 13160, 14462, 15495, 15792, 16528, 19740, 20660, 21693, 24792, 26320, 28924, 30990, 36155, 39480, 41320, 43386, 48551, 49584, 57848, 61980, 72310, 78960, 82640, 86772, 97102, 108465, 115696, 123960, 144620, 145653, 173544, 194204, 216930, 242755, 247920, 289240, 291306, 339857, 347088, 388408, 433860, 485510, 578480, 582612, 679714, 728265, 776816, 867720, 971020, 1019571, 1165224, 1359428, 1456530, 1699285, 1735440, 1942040, 2039142, 2330448, 2718856, 2913060, 3398570, 3884080, 4078284, 5097855, 5437712, 5826120, 6797140, 8156568, 10195710, 11652240, 13594280, 16313136, 20391420, 27188560, 40782840, 81565680]

約数ペア:

[(1, 81565680), (2, 40782840), (3, 27188560), (4, 20391420), (5, 16313136), (6, 13594280), (7, 11652240), (8, 10195710), (10, 8156568), (12, 6797140), (14, 5826120), (15, 5437712), (16, 5097855), (20, 4078284), (21, 3884080), (24, 3398570), (28, 2913060), (30, 2718856), (35, 2330448), (40, 2039142), (42, 1942040), (47, 1735440), (48, 1699285), (56, 1456530), (60, 1359428), (70, 1165224), (80, 1019571), (84, 971020), (94, 867720), (105, 776816), (112, 728265), (120, 679714), (140, 582612), (141, 578480), (168, 485510), (188, 433860), (210, 388408), (235, 347088), (240, 339857), (280, 291306), (282, 289240), (329, 247920), (336, 242755), (376, 216930), (420, 194204), (470, 173544), (560, 145653), (564, 144620), (658, 123960), (705, 115696), (752, 108465), (840, 97102), (940, 86772), (987, 82640), (1033, 78960), (1128, 72310), (1316, 61980), (1410, 57848), (1645, 49584), (1680, 48551), (1880, 43386), (1974, 41320), (2066, 39480), (2256, 36155), (2632, 30990), (2820, 28924), (3099, 26320), (3290, 24792), (3760, 21693), (3948, 20660), (4132, 19740), (4935, 16528), (5165, 15792), (5264, 15495), (5640, 14462), (6198, 13160), (6580, 12396), (7231, 11280), (7896, 10330), (8264, 9870)]