81635280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{643}}^1$

素因数の和:705

約数の個数: 120

約数和(自身を含む): 264962208

約数和(自身を除く): 183326928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 529, 552, 643, 690, 920, 1058, 1104, 1286, 1380, 1587, 1840, 1929, 2116, 2572, 2645, 2760, 3174, 3215, 3858, 4232, 5144, 5290, 5520, 6348, 6430, 7716, 7935, 8464, 9645, 10288, 10580, 12696, 12860, 14789, 15432, 15870, 19290, 21160, 25392, 25720, 29578, 30864, 31740, 38580, 42320, 44367, 51440, 59156, 63480, 73945, 77160, 88734, 118312, 126960, 147890, 154320, 177468, 221835, 236624, 295780, 340147, 354936, 443670, 591560, 680294, 709872, 887340, 1020441, 1183120, 1360588, 1700735, 1774680, 2040882, 2721176, 3401470, 3549360, 4081764, 5102205, 5442352, 6802940, 8163528, 10204410, 13605880, 16327056, 20408820, 27211760, 40817640, 81635280]

約数ペア:

[(1, 81635280), (2, 40817640), (3, 27211760), (4, 20408820), (5, 16327056), (6, 13605880), (8, 10204410), (10, 8163528), (12, 6802940), (15, 5442352), (16, 5102205), (20, 4081764), (23, 3549360), (24, 3401470), (30, 2721176), (40, 2040882), (46, 1774680), (48, 1700735), (60, 1360588), (69, 1183120), (80, 1020441), (92, 887340), (115, 709872), (120, 680294), (138, 591560), (184, 443670), (230, 354936), (240, 340147), (276, 295780), (345, 236624), (368, 221835), (460, 177468), (529, 154320), (552, 147890), (643, 126960), (690, 118312), (920, 88734), (1058, 77160), (1104, 73945), (1286, 63480), (1380, 59156), (1587, 51440), (1840, 44367), (1929, 42320), (2116, 38580), (2572, 31740), (2645, 30864), (2760, 29578), (3174, 25720), (3215, 25392), (3858, 21160), (4232, 19290), (5144, 15870), (5290, 15432), (5520, 14789), (6348, 12860), (6430, 12696), (7716, 10580), (7935, 10288), (8464, 9645)]