21427440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 160

約数和(自身を含む): 72376320

約数和(自身を除く): 50948880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 37, 38, 40, 48, 57, 60, 74, 76, 80, 95, 111, 114, 120, 127, 148, 152, 185, 190, 222, 228, 240, 254, 285, 296, 304, 370, 380, 381, 444, 456, 508, 555, 570, 592, 635, 703, 740, 760, 762, 888, 912, 1016, 1110, 1140, 1270, 1406, 1480, 1520, 1524, 1776, 1905, 2032, 2109, 2220, 2280, 2413, 2540, 2812, 2960, 3048, 3515, 3810, 4218, 4440, 4560, 4699, 4826, 5080, 5624, 6096, 7030, 7239, 7620, 8436, 8880, 9398, 9652, 10160, 10545, 11248, 12065, 14060, 14097, 14478, 15240, 16872, 18796, 19304, 21090, 23495, 24130, 28120, 28194, 28956, 30480, 33744, 36195, 37592, 38608, 42180, 46990, 48260, 56240, 56388, 57912, 70485, 72390, 75184, 84360, 89281, 93980, 96520, 112776, 115824, 140970, 144780, 168720, 178562, 187960, 193040, 225552, 267843, 281940, 289560, 357124, 375920, 446405, 535686, 563880, 579120, 714248, 892810, 1071372, 1127760, 1339215, 1428496, 1785620, 2142744, 2678430, 3571240, 4285488, 5356860, 7142480, 10713720, 21427440]

約数ペア:

[(1, 21427440), (2, 10713720), (3, 7142480), (4, 5356860), (5, 4285488), (6, 3571240), (8, 2678430), (10, 2142744), (12, 1785620), (15, 1428496), (16, 1339215), (19, 1127760), (20, 1071372), (24, 892810), (30, 714248), (37, 579120), (38, 563880), (40, 535686), (48, 446405), (57, 375920), (60, 357124), (74, 289560), (76, 281940), (80, 267843), (95, 225552), (111, 193040), (114, 187960), (120, 178562), (127, 168720), (148, 144780), (152, 140970), (185, 115824), (190, 112776), (222, 96520), (228, 93980), (240, 89281), (254, 84360), (285, 75184), (296, 72390), (304, 70485), (370, 57912), (380, 56388), (381, 56240), (444, 48260), (456, 46990), (508, 42180), (555, 38608), (570, 37592), (592, 36195), (635, 33744), (703, 30480), (740, 28956), (760, 28194), (762, 28120), (888, 24130), (912, 23495), (1016, 21090), (1110, 19304), (1140, 18796), (1270, 16872), (1406, 15240), (1480, 14478), (1520, 14097), (1524, 14060), (1776, 12065), (1905, 11248), (2032, 10545), (2109, 10160), (2220, 9652), (2280, 9398), (2413, 8880), (2540, 8436), (2812, 7620), (2960, 7239), (3048, 7030), (3515, 6096), (3810, 5624), (4218, 5080), (4440, 4826), (4560, 4699)]