213994240

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5393}}^1$

素因数の和:5445

約数の個数: 72

約数和(自身を含む): 529216128

約数和(自身を除く): 315221888

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, 5393, 7936, 9920, 10786, 19840, 21572, 26965, 39680, 43144, 53930, 86288, 107860, 167183, 172576, 215720, 334366, 345152, 431440, 668732, 690304, 835915, 862880, 1337464, 1380608, 1671830, 1725760, 2674928, 3343660, 3451520, 5349856, 6687320, 6903040, 10699712, 13374640, 21399424, 26749280, 42798848, 53498560, 106997120, 213994240]

約数ペア:

[(1, 213994240), (2, 106997120), (4, 53498560), (5, 42798848), (8, 26749280), (10, 21399424), (16, 13374640), (20, 10699712), (31, 6903040), (32, 6687320), (40, 5349856), (62, 3451520), (64, 3343660), (80, 2674928), (124, 1725760), (128, 1671830), (155, 1380608), (160, 1337464), (248, 862880), (256, 835915), (310, 690304), (320, 668732), (496, 431440), (620, 345152), (640, 334366), (992, 215720), (1240, 172576), (1280, 167183), (1984, 107860), (2480, 86288), (3968, 53930), (4960, 43144), (5393, 39680), (7936, 26965), (9920, 21572), (10786, 19840)]