215025920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5419}}^1$

素因数の和:5471

約数の個数: 72

約数和(自身を含む): 531767040

約数和(自身を除く): 316741120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 5419, 7936, 9920, 10838, 19840, 21676, 27095, 39680, 43352, 54190, 86704, 108380, 167989, 173408, 216760, 335978, 346816, 433520, 671956, 693632, 839945, 867040, 1343912, 1387264, 1679890, 1734080, 2687824, 3359780, 3468160, 5375648, 6719560, 6936320, 10751296, 13439120, 21502592, 26878240, 43005184, 53756480, 107512960, 215025920]

約数ペア:

[(1, 215025920), (2, 107512960), (4, 53756480), (5, 43005184), (8, 26878240), (10, 21502592), (16, 13439120), (20, 10751296), (31, 6936320), (32, 6719560), (40, 5375648), (62, 3468160), (64, 3359780), (80, 2687824), (124, 1734080), (128, 1679890), (155, 1387264), (160, 1343912), (248, 867040), (256, 839945), (310, 693632), (320, 671956), (496, 433520), (620, 346816), (640, 335978), (992, 216760), (1240, 173408), (1280, 167989), (1984, 108380), (2480, 86704), (3968, 54190), (4960, 43352), (5419, 39680), (7936, 27095), (9920, 21676), (10838, 19840)]