1212778880

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:536

約数の個数: 128

約数和(自身を含む): 2998702080

約数和(自身を除く): 1785923200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 127, 128, 160, 172, 215, 254, 320, 344, 347, 430, 508, 635, 640, 688, 694, 860, 1016, 1270, 1376, 1388, 1720, 1735, 2032, 2540, 2752, 2776, 3440, 3470, 4064, 5080, 5461, 5504, 5552, 6880, 6940, 8128, 10160, 10922, 11104, 13760, 13880, 14921, 16256, 20320, 21844, 22208, 27305, 27520, 27760, 29842, 40640, 43688, 44069, 44416, 54610, 55520, 59684, 74605, 81280, 87376, 88138, 109220, 111040, 119368, 149210, 174752, 176276, 218440, 220345, 222080, 238736, 298420, 349504, 352552, 436880, 440690, 477472, 596840, 699008, 705104, 873760, 881380, 954944, 1193680, 1410208, 1747520, 1762760, 1894967, 1909888, 2387360, 2820416, 3495040, 3525520, 3789934, 4774720, 5640832, 7051040, 7579868, 9474835, 9549440, 14102080, 15159736, 18949670, 28204160, 30319472, 37899340, 60638944, 75798680, 121277888, 151597360, 242555776, 303194720, 606389440, 1212778880]

約数ペア:

[(1, 1212778880), (2, 606389440), (4, 303194720), (5, 242555776), (8, 151597360), (10, 121277888), (16, 75798680), (20, 60638944), (32, 37899340), (40, 30319472), (43, 28204160), (64, 18949670), (80, 15159736), (86, 14102080), (127, 9549440), (128, 9474835), (160, 7579868), (172, 7051040), (215, 5640832), (254, 4774720), (320, 3789934), (344, 3525520), (347, 3495040), (430, 2820416), (508, 2387360), (635, 1909888), (640, 1894967), (688, 1762760), (694, 1747520), (860, 1410208), (1016, 1193680), (1270, 954944), (1376, 881380), (1388, 873760), (1720, 705104), (1735, 699008), (2032, 596840), (2540, 477472), (2752, 440690), (2776, 436880), (3440, 352552), (3470, 349504), (4064, 298420), (5080, 238736), (5461, 222080), (5504, 220345), (5552, 218440), (6880, 176276), (6940, 174752), (8128, 149210), (10160, 119368), (10922, 111040), (11104, 109220), (13760, 88138), (13880, 87376), (14921, 81280), (16256, 74605), (20320, 59684), (21844, 55520), (22208, 54610), (27305, 44416), (27520, 44069), (27760, 43688), (29842, 40640)]