251679320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 614077200

約数和(自身を除く): 362397880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 197, 205, 328, 380, 394, 410, 760, 779, 788, 820, 985, 1558, 1576, 1640, 1681, 1970, 3116, 3362, 3743, 3895, 3940, 6232, 6724, 7486, 7790, 7880, 8077, 8405, 13448, 14972, 15580, 16154, 16810, 18715, 29944, 31160, 31939, 32308, 33620, 37430, 40385, 63878, 64616, 67240, 74860, 80770, 127756, 149720, 153463, 159695, 161540, 255512, 306926, 319390, 323080, 331157, 613852, 638780, 662314, 767315, 1227704, 1277560, 1324628, 1534630, 1655785, 2649256, 3069260, 3311570, 6138520, 6291983, 6623140, 12583966, 13246280, 25167932, 31459915, 50335864, 62919830, 125839660, 251679320]

約数ペア:

[(1, 251679320), (2, 125839660), (4, 62919830), (5, 50335864), (8, 31459915), (10, 25167932), (19, 13246280), (20, 12583966), (38, 6623140), (40, 6291983), (41, 6138520), (76, 3311570), (82, 3069260), (95, 2649256), (152, 1655785), (164, 1534630), (190, 1324628), (197, 1277560), (205, 1227704), (328, 767315), (380, 662314), (394, 638780), (410, 613852), (760, 331157), (779, 323080), (788, 319390), (820, 306926), (985, 255512), (1558, 161540), (1576, 159695), (1640, 153463), (1681, 149720), (1970, 127756), (3116, 80770), (3362, 74860), (3743, 67240), (3895, 64616), (3940, 63878), (6232, 40385), (6724, 37430), (7486, 33620), (7790, 32308), (7880, 31939), (8077, 31160), (8405, 29944), (13448, 18715), (14972, 16810), (15580, 16154)]