388705920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{457}}^1$

素因数の和:922

約数の個数: 128

約数和(自身を含む): 1244514240

約数和(自身を除く): 855808320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 443, 457, 480, 640, 886, 914, 960, 1329, 1371, 1772, 1828, 1920, 2215, 2285, 2658, 2742, 3544, 3656, 4430, 4570, 5316, 5484, 6645, 6855, 7088, 7312, 8860, 9140, 10632, 10968, 13290, 13710, 14176, 14624, 17720, 18280, 21264, 21936, 26580, 27420, 28352, 29248, 35440, 36560, 42528, 43872, 53160, 54840, 56704, 58496, 70880, 73120, 85056, 87744, 106320, 109680, 141760, 146240, 170112, 175488, 202451, 212640, 219360, 283520, 292480, 404902, 425280, 438720, 607353, 809804, 850560, 877440, 1012255, 1214706, 1619608, 2024510, 2429412, 3036765, 3239216, 4049020, 4858824, 6073530, 6478432, 8098040, 9717648, 12147060, 12956864, 16196080, 19435296, 24294120, 25913728, 32392160, 38870592, 48588240, 64784320, 77741184, 97176480, 129568640, 194352960, 388705920]

約数ペア:

[(1, 388705920), (2, 194352960), (3, 129568640), (4, 97176480), (5, 77741184), (6, 64784320), (8, 48588240), (10, 38870592), (12, 32392160), (15, 25913728), (16, 24294120), (20, 19435296), (24, 16196080), (30, 12956864), (32, 12147060), (40, 9717648), (48, 8098040), (60, 6478432), (64, 6073530), (80, 4858824), (96, 4049020), (120, 3239216), (128, 3036765), (160, 2429412), (192, 2024510), (240, 1619608), (320, 1214706), (384, 1012255), (443, 877440), (457, 850560), (480, 809804), (640, 607353), (886, 438720), (914, 425280), (960, 404902), (1329, 292480), (1371, 283520), (1772, 219360), (1828, 212640), (1920, 202451), (2215, 175488), (2285, 170112), (2658, 146240), (2742, 141760), (3544, 109680), (3656, 106320), (4430, 87744), (4570, 85056), (5316, 73120), (5484, 70880), (6645, 58496), (6855, 56704), (7088, 54840), (7312, 53160), (8860, 43872), (9140, 42528), (10632, 36560), (10968, 35440), (13290, 29248), (13710, 28352), (14176, 27420), (14624, 26580), (17720, 21936), (18280, 21264)]