81939200

素因数分解:

$2^8\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 216

約数和(自身を含む): 243317760

約数和(自身を除く): 161378560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 59, 62, 64, 70, 80, 100, 112, 118, 124, 128, 140, 155, 160, 175, 200, 217, 224, 236, 248, 256, 280, 295, 310, 320, 350, 400, 413, 434, 448, 472, 496, 560, 590, 620, 640, 700, 775, 800, 826, 868, 896, 944, 992, 1085, 1120, 1180, 1240, 1280, 1400, 1475, 1550, 1600, 1652, 1736, 1792, 1829, 1888, 1984, 2065, 2170, 2240, 2360, 2480, 2800, 2950, 3100, 3200, 3304, 3472, 3658, 3776, 3968, 4130, 4340, 4480, 4720, 4960, 5425, 5600, 5900, 6200, 6400, 6608, 6944, 7316, 7552, 7936, 8260, 8680, 8960, 9145, 9440, 9920, 10325, 10850, 11200, 11800, 12400, 12803, 13216, 13888, 14632, 15104, 16520, 17360, 18290, 18880, 19840, 20650, 21700, 22400, 23600, 24800, 25606, 26432, 27776, 29264, 33040, 34720, 36580, 37760, 39680, 41300, 43400, 44800, 45725, 47200, 49600, 51212, 52864, 55552, 58528, 64015, 66080, 69440, 73160, 75520, 82600, 86800, 91450, 94400, 99200, 102424, 105728, 117056, 128030, 132160, 138880, 146320, 165200, 173600, 182900, 188800, 198400, 204848, 234112, 256060, 264320, 277760, 292640, 320075, 330400, 347200, 365800, 377600, 409696, 468224, 512120, 528640, 585280, 640150, 660800, 694400, 731600, 819392, 1024240, 1170560, 1280300, 1321600, 1388800, 1463200, 1638784, 2048480, 2341120, 2560600, 2643200, 2926400, 3277568, 4096960, 5121200, 5852800, 8193920, 10242400, 11705600, 16387840, 20484800, 40969600, 81939200]

約数ペア:

[(1, 81939200), (2, 40969600), (4, 20484800), (5, 16387840), (7, 11705600), (8, 10242400), (10, 8193920), (14, 5852800), (16, 5121200), (20, 4096960), (25, 3277568), (28, 2926400), (31, 2643200), (32, 2560600), (35, 2341120), (40, 2048480), (50, 1638784), (56, 1463200), (59, 1388800), (62, 1321600), (64, 1280300), (70, 1170560), (80, 1024240), (100, 819392), (112, 731600), (118, 694400), (124, 660800), (128, 640150), (140, 585280), (155, 528640), (160, 512120), (175, 468224), (200, 409696), (217, 377600), (224, 365800), (236, 347200), (248, 330400), (256, 320075), (280, 292640), (295, 277760), (310, 264320), (320, 256060), (350, 234112), (400, 204848), (413, 198400), (434, 188800), (448, 182900), (472, 173600), (496, 165200), (560, 146320), (590, 138880), (620, 132160), (640, 128030), (700, 117056), (775, 105728), (800, 102424), (826, 99200), (868, 94400), (896, 91450), (944, 86800), (992, 82600), (1085, 75520), (1120, 73160), (1180, 69440), (1240, 66080), (1280, 64015), (1400, 58528), (1475, 55552), (1550, 52864), (1600, 51212), (1652, 49600), (1736, 47200), (1792, 45725), (1829, 44800), (1888, 43400), (1984, 41300), (2065, 39680), (2170, 37760), (2240, 36580), (2360, 34720), (2480, 33040), (2800, 29264), (2950, 27776), (3100, 26432), (3200, 25606), (3304, 24800), (3472, 23600), (3658, 22400), (3776, 21700), (3968, 20650), (4130, 19840), (4340, 18880), (4480, 18290), (4720, 17360), (4960, 16520), (5425, 15104), (5600, 14632), (5900, 13888), (6200, 13216), (6400, 12803), (6608, 12400), (6944, 11800), (7316, 11200), (7552, 10850), (7936, 10325), (8260, 9920), (8680, 9440), (8960, 9145)]