80378480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 160

約数和(自身を含む): 235068288

約数和(自身を除く): 154689808

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 61, 65, 70, 80, 91, 104, 112, 122, 130, 140, 181, 182, 208, 244, 260, 280, 305, 362, 364, 427, 455, 488, 520, 560, 610, 724, 728, 793, 854, 905, 910, 976, 1040, 1220, 1267, 1448, 1456, 1586, 1708, 1810, 1820, 2135, 2353, 2440, 2534, 2896, 3172, 3416, 3620, 3640, 3965, 4270, 4706, 4880, 5068, 5551, 6335, 6344, 6832, 7240, 7280, 7930, 8540, 9412, 10136, 11041, 11102, 11765, 12670, 12688, 14480, 15860, 16471, 17080, 18824, 20272, 22082, 22204, 23530, 25340, 27755, 31720, 32942, 34160, 37648, 44164, 44408, 47060, 50680, 55205, 55510, 63440, 65884, 77287, 82355, 88328, 88816, 94120, 101360, 110410, 111020, 131768, 143533, 154574, 164710, 176656, 188240, 220820, 222040, 263536, 287066, 309148, 329420, 386435, 441640, 444080, 574132, 618296, 658840, 717665, 772870, 883280, 1004731, 1148264, 1236592, 1317680, 1435330, 1545740, 2009462, 2296528, 2870660, 3091480, 4018924, 5023655, 5741320, 6182960, 8037848, 10047310, 11482640, 16075696, 20094620, 40189240, 80378480]

約数ペア:

[(1, 80378480), (2, 40189240), (4, 20094620), (5, 16075696), (7, 11482640), (8, 10047310), (10, 8037848), (13, 6182960), (14, 5741320), (16, 5023655), (20, 4018924), (26, 3091480), (28, 2870660), (35, 2296528), (40, 2009462), (52, 1545740), (56, 1435330), (61, 1317680), (65, 1236592), (70, 1148264), (80, 1004731), (91, 883280), (104, 772870), (112, 717665), (122, 658840), (130, 618296), (140, 574132), (181, 444080), (182, 441640), (208, 386435), (244, 329420), (260, 309148), (280, 287066), (305, 263536), (362, 222040), (364, 220820), (427, 188240), (455, 176656), (488, 164710), (520, 154574), (560, 143533), (610, 131768), (724, 111020), (728, 110410), (793, 101360), (854, 94120), (905, 88816), (910, 88328), (976, 82355), (1040, 77287), (1220, 65884), (1267, 63440), (1448, 55510), (1456, 55205), (1586, 50680), (1708, 47060), (1810, 44408), (1820, 44164), (2135, 37648), (2353, 34160), (2440, 32942), (2534, 31720), (2896, 27755), (3172, 25340), (3416, 23530), (3620, 22204), (3640, 22082), (3965, 20272), (4270, 18824), (4706, 17080), (4880, 16471), (5068, 15860), (5551, 14480), (6335, 12688), (6344, 12670), (6832, 11765), (7240, 11102), (7280, 11041), (7930, 10136), (8540, 9412)]