138304880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{503}}^1$

素因数の和:1014

約数の個数: 80

約数和(自身を含む): 368976384

約数和(自身を除く): 230671504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 491, 503, 560, 982, 1006, 1964, 2012, 2455, 2515, 3437, 3521, 3928, 4024, 4910, 5030, 6874, 7042, 7856, 8048, 9820, 10060, 13748, 14084, 17185, 17605, 19640, 20120, 27496, 28168, 34370, 35210, 39280, 40240, 54992, 56336, 68740, 70420, 137480, 140840, 246973, 274960, 281680, 493946, 987892, 1234865, 1728811, 1975784, 2469730, 3457622, 3951568, 4939460, 6915244, 8644055, 9878920, 13830488, 17288110, 19757840, 27660976, 34576220, 69152440, 138304880]

約数ペア:

[(1, 138304880), (2, 69152440), (4, 34576220), (5, 27660976), (7, 19757840), (8, 17288110), (10, 13830488), (14, 9878920), (16, 8644055), (20, 6915244), (28, 4939460), (35, 3951568), (40, 3457622), (56, 2469730), (70, 1975784), (80, 1728811), (112, 1234865), (140, 987892), (280, 493946), (491, 281680), (503, 274960), (560, 246973), (982, 140840), (1006, 137480), (1964, 70420), (2012, 68740), (2455, 56336), (2515, 54992), (3437, 40240), (3521, 39280), (3928, 35210), (4024, 34370), (4910, 28168), (5030, 27496), (6874, 20120), (7042, 19640), (7856, 17605), (8048, 17185), (9820, 14084), (10060, 13748)]