218510320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:399

約数の個数: 160

約数和(自身を含む): 615960576

約数和(自身を除く): 397450256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 41, 56, 62, 70, 80, 82, 112, 124, 140, 155, 164, 205, 217, 248, 280, 287, 307, 310, 328, 410, 434, 496, 560, 574, 614, 620, 656, 820, 868, 1085, 1148, 1228, 1240, 1271, 1435, 1535, 1640, 1736, 2149, 2170, 2296, 2456, 2480, 2542, 2870, 3070, 3280, 3472, 4298, 4340, 4592, 4912, 5084, 5740, 6140, 6355, 8596, 8680, 8897, 9517, 10168, 10745, 11480, 12280, 12587, 12710, 17192, 17360, 17794, 19034, 20336, 21490, 22960, 24560, 25174, 25420, 34384, 35588, 38068, 42980, 44485, 47585, 50348, 50840, 62935, 66619, 71176, 76136, 85960, 88109, 88970, 95170, 100696, 101680, 125870, 133238, 142352, 152272, 171920, 176218, 177940, 190340, 201392, 251740, 266476, 333095, 352436, 355880, 380680, 390197, 440545, 503480, 532952, 666190, 704872, 711760, 761360, 780394, 881090, 1006960, 1065904, 1332380, 1409744, 1560788, 1762180, 1950985, 2664760, 2731379, 3121576, 3524360, 3901970, 5329520, 5462758, 6243152, 7048720, 7803940, 10925516, 13656895, 15607880, 21851032, 27313790, 31215760, 43702064, 54627580, 109255160, 218510320]

約数ペア:

[(1, 218510320), (2, 109255160), (4, 54627580), (5, 43702064), (7, 31215760), (8, 27313790), (10, 21851032), (14, 15607880), (16, 13656895), (20, 10925516), (28, 7803940), (31, 7048720), (35, 6243152), (40, 5462758), (41, 5329520), (56, 3901970), (62, 3524360), (70, 3121576), (80, 2731379), (82, 2664760), (112, 1950985), (124, 1762180), (140, 1560788), (155, 1409744), (164, 1332380), (205, 1065904), (217, 1006960), (248, 881090), (280, 780394), (287, 761360), (307, 711760), (310, 704872), (328, 666190), (410, 532952), (434, 503480), (496, 440545), (560, 390197), (574, 380680), (614, 355880), (620, 352436), (656, 333095), (820, 266476), (868, 251740), (1085, 201392), (1148, 190340), (1228, 177940), (1240, 176218), (1271, 171920), (1435, 152272), (1535, 142352), (1640, 133238), (1736, 125870), (2149, 101680), (2170, 100696), (2296, 95170), (2456, 88970), (2480, 88109), (2542, 85960), (2870, 76136), (3070, 71176), (3280, 66619), (3472, 62935), (4298, 50840), (4340, 50348), (4592, 47585), (4912, 44485), (5084, 42980), (5740, 38068), (6140, 35588), (6355, 34384), (8596, 25420), (8680, 25174), (8897, 24560), (9517, 22960), (10168, 21490), (10745, 20336), (11480, 19034), (12280, 17794), (12587, 17360), (12710, 17192)]