218612480

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 562917600

約数和(自身を除く): 344305120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 89, 95, 101, 128, 152, 160, 178, 190, 202, 256, 304, 320, 356, 380, 404, 445, 505, 608, 640, 712, 760, 808, 890, 1010, 1216, 1280, 1424, 1520, 1616, 1691, 1780, 1919, 2020, 2432, 2848, 3040, 3232, 3382, 3560, 3838, 4040, 4864, 5696, 6080, 6464, 6764, 7120, 7676, 8080, 8455, 8989, 9595, 11392, 12160, 12928, 13528, 14240, 15352, 16160, 16910, 17978, 19190, 22784, 24320, 25856, 27056, 28480, 30704, 32320, 33820, 35956, 38380, 44945, 54112, 56960, 61408, 64640, 67640, 71912, 76760, 89890, 108224, 113920, 122816, 129280, 135280, 143824, 153520, 170791, 179780, 216448, 245632, 270560, 287648, 307040, 341582, 359560, 432896, 491264, 541120, 575296, 614080, 683164, 719120, 853955, 1082240, 1150592, 1228160, 1366328, 1438240, 1707910, 2164480, 2301184, 2456320, 2732656, 2876480, 3415820, 5465312, 5752960, 6831640, 10930624, 11505920, 13663280, 21861248, 27326560, 43722496, 54653120, 109306240, 218612480]

約数ペア:

[(1, 218612480), (2, 109306240), (4, 54653120), (5, 43722496), (8, 27326560), (10, 21861248), (16, 13663280), (19, 11505920), (20, 10930624), (32, 6831640), (38, 5752960), (40, 5465312), (64, 3415820), (76, 2876480), (80, 2732656), (89, 2456320), (95, 2301184), (101, 2164480), (128, 1707910), (152, 1438240), (160, 1366328), (178, 1228160), (190, 1150592), (202, 1082240), (256, 853955), (304, 719120), (320, 683164), (356, 614080), (380, 575296), (404, 541120), (445, 491264), (505, 432896), (608, 359560), (640, 341582), (712, 307040), (760, 287648), (808, 270560), (890, 245632), (1010, 216448), (1216, 179780), (1280, 170791), (1424, 153520), (1520, 143824), (1616, 135280), (1691, 129280), (1780, 122816), (1919, 113920), (2020, 108224), (2432, 89890), (2848, 76760), (3040, 71912), (3232, 67640), (3382, 64640), (3560, 61408), (3838, 56960), (4040, 54112), (4864, 44945), (5696, 38380), (6080, 35956), (6464, 33820), (6764, 32320), (7120, 30704), (7676, 28480), (8080, 27056), (8455, 25856), (8989, 24320), (9595, 22784), (11392, 19190), (12160, 17978), (12928, 16910), (13528, 16160), (14240, 15352)]