321578800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 180

約数和(自身を含む): 869951016

約数和(自身を除く): 548372216

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 80, 85, 95, 100, 131, 136, 152, 170, 190, 200, 262, 272, 304, 323, 340, 361, 380, 400, 425, 475, 524, 646, 655, 680, 722, 760, 850, 950, 1048, 1292, 1310, 1360, 1444, 1520, 1615, 1700, 1805, 1900, 2096, 2227, 2489, 2584, 2620, 2888, 3230, 3275, 3400, 3610, 3800, 4454, 4978, 5168, 5240, 5776, 6137, 6460, 6550, 6800, 7220, 7600, 8075, 8908, 9025, 9956, 10480, 11135, 12274, 12445, 12920, 13100, 14440, 16150, 17816, 18050, 19912, 22270, 24548, 24890, 25840, 26200, 28880, 30685, 32300, 35632, 36100, 39824, 42313, 44540, 47291, 49096, 49780, 52400, 55675, 61370, 62225, 64600, 72200, 84626, 89080, 94582, 98192, 99560, 111350, 122740, 124450, 129200, 144400, 153425, 169252, 178160, 189164, 199120, 211565, 222700, 236455, 245480, 248900, 306850, 338504, 378328, 423130, 445400, 472910, 490960, 497800, 613700, 677008, 756656, 803947, 846260, 890800, 945820, 995600, 1057825, 1182275, 1227400, 1607894, 1692520, 1891640, 2115650, 2364550, 2454800, 3215788, 3385040, 3783280, 4019735, 4231300, 4729100, 6431576, 8039470, 8462600, 9458200, 12863152, 16078940, 16925200, 18916400, 20098675, 32157880, 40197350, 64315760, 80394700, 160789400, 321578800]

約数ペア:

[(1, 321578800), (2, 160789400), (4, 80394700), (5, 64315760), (8, 40197350), (10, 32157880), (16, 20098675), (17, 18916400), (19, 16925200), (20, 16078940), (25, 12863152), (34, 9458200), (38, 8462600), (40, 8039470), (50, 6431576), (68, 4729100), (76, 4231300), (80, 4019735), (85, 3783280), (95, 3385040), (100, 3215788), (131, 2454800), (136, 2364550), (152, 2115650), (170, 1891640), (190, 1692520), (200, 1607894), (262, 1227400), (272, 1182275), (304, 1057825), (323, 995600), (340, 945820), (361, 890800), (380, 846260), (400, 803947), (425, 756656), (475, 677008), (524, 613700), (646, 497800), (655, 490960), (680, 472910), (722, 445400), (760, 423130), (850, 378328), (950, 338504), (1048, 306850), (1292, 248900), (1310, 245480), (1360, 236455), (1444, 222700), (1520, 211565), (1615, 199120), (1700, 189164), (1805, 178160), (1900, 169252), (2096, 153425), (2227, 144400), (2489, 129200), (2584, 124450), (2620, 122740), (2888, 111350), (3230, 99560), (3275, 98192), (3400, 94582), (3610, 89080), (3800, 84626), (4454, 72200), (4978, 64600), (5168, 62225), (5240, 61370), (5776, 55675), (6137, 52400), (6460, 49780), (6550, 49096), (6800, 47291), (7220, 44540), (7600, 42313), (8075, 39824), (8908, 36100), (9025, 35632), (9956, 32300), (10480, 30685), (11135, 28880), (12274, 26200), (12445, 25840), (12920, 24890), (13100, 24548), (14440, 22270), (16150, 19912), (17816, 18050)]