163089760

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:428

約数の個数: 96

約数和(自身を含む): 402361344

約数和(自身を除く): 239271584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 131, 155, 160, 248, 251, 262, 310, 496, 502, 524, 620, 655, 992, 1004, 1048, 1240, 1255, 1310, 2008, 2096, 2480, 2510, 2620, 4016, 4061, 4192, 4960, 5020, 5240, 7781, 8032, 8122, 10040, 10480, 15562, 16244, 20080, 20305, 20960, 31124, 32488, 32881, 38905, 40160, 40610, 62248, 64976, 65762, 77810, 81220, 124496, 129952, 131524, 155620, 162440, 164405, 248992, 263048, 311240, 324880, 328810, 526096, 622480, 649760, 657620, 1019311, 1052192, 1244960, 1315240, 2038622, 2630480, 4077244, 5096555, 5260960, 8154488, 10193110, 16308976, 20386220, 32617952, 40772440, 81544880, 163089760]

約数ペア:

[(1, 163089760), (2, 81544880), (4, 40772440), (5, 32617952), (8, 20386220), (10, 16308976), (16, 10193110), (20, 8154488), (31, 5260960), (32, 5096555), (40, 4077244), (62, 2630480), (80, 2038622), (124, 1315240), (131, 1244960), (155, 1052192), (160, 1019311), (248, 657620), (251, 649760), (262, 622480), (310, 526096), (496, 328810), (502, 324880), (524, 311240), (620, 263048), (655, 248992), (992, 164405), (1004, 162440), (1048, 155620), (1240, 131524), (1255, 129952), (1310, 124496), (2008, 81220), (2096, 77810), (2480, 65762), (2510, 64976), (2620, 62248), (4016, 40610), (4061, 40160), (4192, 38905), (4960, 32881), (5020, 32488), (5240, 31124), (7781, 20960), (8032, 20305), (8122, 20080), (10040, 16244), (10480, 15562)]