19704720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:377

約数の個数: 160

約数和(自身を含む): 71923968

約数和(自身を除く): 52219248

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 105, 111, 112, 120, 140, 148, 168, 185, 210, 222, 240, 259, 280, 296, 317, 336, 370, 420, 444, 518, 555, 560, 592, 634, 740, 777, 840, 888, 951, 1036, 1110, 1268, 1295, 1480, 1554, 1585, 1680, 1776, 1902, 2072, 2219, 2220, 2536, 2590, 2960, 3108, 3170, 3804, 3885, 4144, 4438, 4440, 4755, 5072, 5180, 6216, 6340, 6657, 7608, 7770, 8876, 8880, 9510, 10360, 11095, 11729, 12432, 12680, 13314, 15216, 15540, 17752, 19020, 20720, 22190, 23458, 25360, 26628, 31080, 33285, 35187, 35504, 38040, 44380, 46916, 53256, 58645, 62160, 66570, 70374, 76080, 82103, 88760, 93832, 106512, 117290, 133140, 140748, 164206, 175935, 177520, 187664, 234580, 246309, 266280, 281496, 328412, 351870, 410515, 469160, 492618, 532560, 562992, 656824, 703740, 821030, 938320, 985236, 1231545, 1313648, 1407480, 1642060, 1970472, 2463090, 2814960, 3284120, 3940944, 4926180, 6568240, 9852360, 19704720]

約数ペア:

[(1, 19704720), (2, 9852360), (3, 6568240), (4, 4926180), (5, 3940944), (6, 3284120), (7, 2814960), (8, 2463090), (10, 1970472), (12, 1642060), (14, 1407480), (15, 1313648), (16, 1231545), (20, 985236), (21, 938320), (24, 821030), (28, 703740), (30, 656824), (35, 562992), (37, 532560), (40, 492618), (42, 469160), (48, 410515), (56, 351870), (60, 328412), (70, 281496), (74, 266280), (80, 246309), (84, 234580), (105, 187664), (111, 177520), (112, 175935), (120, 164206), (140, 140748), (148, 133140), (168, 117290), (185, 106512), (210, 93832), (222, 88760), (240, 82103), (259, 76080), (280, 70374), (296, 66570), (317, 62160), (336, 58645), (370, 53256), (420, 46916), (444, 44380), (518, 38040), (555, 35504), (560, 35187), (592, 33285), (634, 31080), (740, 26628), (777, 25360), (840, 23458), (888, 22190), (951, 20720), (1036, 19020), (1110, 17752), (1268, 15540), (1295, 15216), (1480, 13314), (1554, 12680), (1585, 12432), (1680, 11729), (1776, 11095), (1902, 10360), (2072, 9510), (2219, 8880), (2220, 8876), (2536, 7770), (2590, 7608), (2960, 6657), (3108, 6340), (3170, 6216), (3804, 5180), (3885, 5072), (4144, 4755), (4438, 4440)]