129072640

素因数分解:

$2^9\times 5^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:547

約数の個数: 80

約数和(自身を含む): 312694272

約数和(自身を除く): 183621632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 397, 508, 512, 635, 640, 794, 1016, 1270, 1280, 1588, 1985, 2032, 2540, 2560, 3176, 3970, 4064, 5080, 6352, 7940, 8128, 10160, 12704, 15880, 16256, 20320, 25408, 31760, 32512, 40640, 50419, 50816, 63520, 65024, 81280, 100838, 101632, 127040, 162560, 201676, 203264, 252095, 254080, 325120, 403352, 504190, 508160, 806704, 1008380, 1016320, 1613408, 2016760, 3226816, 4033520, 6453632, 8067040, 12907264, 16134080, 25814528, 32268160, 64536320, 129072640]

約数ペア:

[(1, 129072640), (2, 64536320), (4, 32268160), (5, 25814528), (8, 16134080), (10, 12907264), (16, 8067040), (20, 6453632), (32, 4033520), (40, 3226816), (64, 2016760), (80, 1613408), (127, 1016320), (128, 1008380), (160, 806704), (254, 508160), (256, 504190), (320, 403352), (397, 325120), (508, 254080), (512, 252095), (635, 203264), (640, 201676), (794, 162560), (1016, 127040), (1270, 101632), (1280, 100838), (1588, 81280), (1985, 65024), (2032, 63520), (2540, 50816), (2560, 50419), (3176, 40640), (3970, 32512), (4064, 31760), (5080, 25408), (6352, 20320), (7940, 16256), (8128, 15880), (10160, 12704)]