220620800

素因数分解:

$2^{11}\times 5^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:202

約数の個数: 144

約数和(自身を含む): 568713600

約数和(自身を除く): 348092800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 139, 155, 160, 200, 248, 256, 278, 310, 320, 400, 496, 512, 556, 620, 640, 695, 775, 800, 992, 1024, 1112, 1240, 1280, 1390, 1550, 1600, 1984, 2048, 2224, 2480, 2560, 2780, 3100, 3200, 3475, 3968, 4309, 4448, 4960, 5120, 5560, 6200, 6400, 6950, 7936, 8618, 8896, 9920, 10240, 11120, 12400, 12800, 13900, 15872, 17236, 17792, 19840, 21545, 22240, 24800, 25600, 27800, 31744, 34472, 35584, 39680, 43090, 44480, 49600, 51200, 55600, 63488, 68944, 71168, 79360, 86180, 88960, 99200, 107725, 111200, 137888, 142336, 158720, 172360, 177920, 198400, 215450, 222400, 275776, 284672, 317440, 344720, 355840, 396800, 430900, 444800, 551552, 689440, 711680, 793600, 861800, 889600, 1103104, 1378880, 1423360, 1587200, 1723600, 1779200, 2206208, 2757760, 3447200, 3558400, 4412416, 5515520, 6894400, 7116800, 8824832, 11031040, 13788800, 22062080, 27577600, 44124160, 55155200, 110310400, 220620800]

約数ペア:

[(1, 220620800), (2, 110310400), (4, 55155200), (5, 44124160), (8, 27577600), (10, 22062080), (16, 13788800), (20, 11031040), (25, 8824832), (31, 7116800), (32, 6894400), (40, 5515520), (50, 4412416), (62, 3558400), (64, 3447200), (80, 2757760), (100, 2206208), (124, 1779200), (128, 1723600), (139, 1587200), (155, 1423360), (160, 1378880), (200, 1103104), (248, 889600), (256, 861800), (278, 793600), (310, 711680), (320, 689440), (400, 551552), (496, 444800), (512, 430900), (556, 396800), (620, 355840), (640, 344720), (695, 317440), (775, 284672), (800, 275776), (992, 222400), (1024, 215450), (1112, 198400), (1240, 177920), (1280, 172360), (1390, 158720), (1550, 142336), (1600, 137888), (1984, 111200), (2048, 107725), (2224, 99200), (2480, 88960), (2560, 86180), (2780, 79360), (3100, 71168), (3200, 68944), (3475, 63488), (3968, 55600), (4309, 51200), (4448, 49600), (4960, 44480), (5120, 43090), (5560, 39680), (6200, 35584), (6400, 34472), (6950, 31744), (7936, 27800), (8618, 25600), (8896, 24800), (9920, 22240), (10240, 21545), (11120, 19840), (12400, 17792), (12800, 17236), (13900, 15872)]