278873920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1632

約数の個数: 112

約数和(自身を含む): 732251520

約数和(自身を除く): 453377600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 130, 160, 172, 208, 215, 260, 320, 344, 416, 430, 520, 559, 688, 832, 860, 1040, 1118, 1376, 1559, 1720, 2080, 2236, 2752, 2795, 3118, 3440, 4160, 4472, 5590, 6236, 6880, 7795, 8944, 11180, 12472, 13760, 15590, 17888, 20267, 22360, 24944, 31180, 35776, 40534, 44720, 49888, 62360, 67037, 81068, 89440, 99776, 101335, 124720, 134074, 162136, 178880, 202670, 249440, 268148, 324272, 335185, 405340, 498880, 536296, 648544, 670370, 810680, 871481, 1072592, 1297088, 1340740, 1621360, 1742962, 2145184, 2681480, 3242720, 3485924, 4290368, 4357405, 5362960, 6485440, 6971848, 8714810, 10725920, 13943696, 17429620, 21451840, 27887392, 34859240, 55774784, 69718480, 139436960, 278873920]

約数ペア:

[(1, 278873920), (2, 139436960), (4, 69718480), (5, 55774784), (8, 34859240), (10, 27887392), (13, 21451840), (16, 17429620), (20, 13943696), (26, 10725920), (32, 8714810), (40, 6971848), (43, 6485440), (52, 5362960), (64, 4357405), (65, 4290368), (80, 3485924), (86, 3242720), (104, 2681480), (130, 2145184), (160, 1742962), (172, 1621360), (208, 1340740), (215, 1297088), (260, 1072592), (320, 871481), (344, 810680), (416, 670370), (430, 648544), (520, 536296), (559, 498880), (688, 405340), (832, 335185), (860, 324272), (1040, 268148), (1118, 249440), (1376, 202670), (1559, 178880), (1720, 162136), (2080, 134074), (2236, 124720), (2752, 101335), (2795, 99776), (3118, 89440), (3440, 81068), (4160, 67037), (4472, 62360), (5590, 49888), (6236, 44720), (6880, 40534), (7795, 35776), (8944, 31180), (11180, 24944), (12472, 22360), (13760, 20267), (15590, 17888)]