81571800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{257}}^1$

素因数の和:322

約数の個数: 144

約数和(自身を含む): 265373640

約数和(自身を除く): 183801840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 25, 30, 40, 46, 50, 60, 69, 75, 92, 100, 115, 120, 138, 150, 184, 200, 230, 257, 276, 300, 345, 460, 514, 529, 552, 575, 600, 690, 771, 920, 1028, 1058, 1150, 1285, 1380, 1542, 1587, 1725, 2056, 2116, 2300, 2570, 2645, 2760, 3084, 3174, 3450, 3855, 4232, 4600, 5140, 5290, 5911, 6168, 6348, 6425, 6900, 7710, 7935, 10280, 10580, 11822, 12696, 12850, 13225, 13800, 15420, 15870, 17733, 19275, 21160, 23644, 25700, 26450, 29555, 30840, 31740, 35466, 38550, 39675, 47288, 51400, 52900, 59110, 63480, 70932, 77100, 79350, 88665, 105800, 118220, 135953, 141864, 147775, 154200, 158700, 177330, 236440, 271906, 295550, 317400, 354660, 407859, 443325, 543812, 591100, 679765, 709320, 815718, 886650, 1087624, 1182200, 1359530, 1631436, 1773300, 2039295, 2719060, 3262872, 3398825, 3546600, 4078590, 5438120, 6797650, 8157180, 10196475, 13595300, 16314360, 20392950, 27190600, 40785900, 81571800]

約数ペア:

[(1, 81571800), (2, 40785900), (3, 27190600), (4, 20392950), (5, 16314360), (6, 13595300), (8, 10196475), (10, 8157180), (12, 6797650), (15, 5438120), (20, 4078590), (23, 3546600), (24, 3398825), (25, 3262872), (30, 2719060), (40, 2039295), (46, 1773300), (50, 1631436), (60, 1359530), (69, 1182200), (75, 1087624), (92, 886650), (100, 815718), (115, 709320), (120, 679765), (138, 591100), (150, 543812), (184, 443325), (200, 407859), (230, 354660), (257, 317400), (276, 295550), (300, 271906), (345, 236440), (460, 177330), (514, 158700), (529, 154200), (552, 147775), (575, 141864), (600, 135953), (690, 118220), (771, 105800), (920, 88665), (1028, 79350), (1058, 77100), (1150, 70932), (1285, 63480), (1380, 59110), (1542, 52900), (1587, 51400), (1725, 47288), (2056, 39675), (2116, 38550), (2300, 35466), (2570, 31740), (2645, 30840), (2760, 29555), (3084, 26450), (3174, 25700), (3450, 23644), (3855, 21160), (4232, 19275), (4600, 17733), (5140, 15870), (5290, 15420), (5911, 13800), (6168, 13225), (6348, 12850), (6425, 12696), (6900, 11822), (7710, 10580), (7935, 10280)]