81484380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:481

約数の個数: 120

約数和(自身を含む): 257962320

約数和(自身を除く): 176477940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 179, 180, 270, 281, 324, 358, 405, 537, 540, 562, 716, 810, 843, 895, 1074, 1124, 1405, 1611, 1620, 1686, 1790, 2148, 2529, 2685, 2810, 3222, 3372, 3580, 4215, 4833, 5058, 5370, 5620, 6444, 7587, 8055, 8430, 9666, 10116, 10740, 12645, 14499, 15174, 16110, 16860, 19332, 22761, 24165, 25290, 28998, 30348, 32220, 37935, 45522, 48330, 50299, 50580, 57996, 72495, 75870, 91044, 96660, 100598, 113805, 144990, 150897, 151740, 201196, 227610, 251495, 289980, 301794, 452691, 455220, 502990, 603588, 754485, 905382, 1005980, 1358073, 1508970, 1810764, 2263455, 2716146, 3017940, 4074219, 4526910, 5432292, 6790365, 8148438, 9053820, 13580730, 16296876, 20371095, 27161460, 40742190, 81484380]

約数ペア:

[(1, 81484380), (2, 40742190), (3, 27161460), (4, 20371095), (5, 16296876), (6, 13580730), (9, 9053820), (10, 8148438), (12, 6790365), (15, 5432292), (18, 4526910), (20, 4074219), (27, 3017940), (30, 2716146), (36, 2263455), (45, 1810764), (54, 1508970), (60, 1358073), (81, 1005980), (90, 905382), (108, 754485), (135, 603588), (162, 502990), (179, 455220), (180, 452691), (270, 301794), (281, 289980), (324, 251495), (358, 227610), (405, 201196), (537, 151740), (540, 150897), (562, 144990), (716, 113805), (810, 100598), (843, 96660), (895, 91044), (1074, 75870), (1124, 72495), (1405, 57996), (1611, 50580), (1620, 50299), (1686, 48330), (1790, 45522), (2148, 37935), (2529, 32220), (2685, 30348), (2810, 28998), (3222, 25290), (3372, 24165), (3580, 22761), (4215, 19332), (4833, 16860), (5058, 16110), (5370, 15174), (5620, 14499), (6444, 12645), (7587, 10740), (8055, 10116), (8430, 9666)]