64536320

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 156194304

約数和(自身を除く): 91657984

約数列:

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

約数ペア:

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