51437440

素因数分解:

$2^7\times 5^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 123930000

約数和(自身を除く): 72492560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 179, 320, 358, 449, 640, 716, 895, 898, 1432, 1790, 1796, 2245, 2864, 3580, 3592, 4490, 5728, 7160, 7184, 8980, 11456, 14320, 14368, 17960, 22912, 28640, 28736, 35920, 57280, 57472, 71840, 80371, 114560, 143680, 160742, 287360, 321484, 401855, 642968, 803710, 1285936, 1607420, 2571872, 3214840, 5143744, 6429680, 10287488, 12859360, 25718720, 51437440]

約数ペア:

[(1, 51437440), (2, 25718720), (4, 12859360), (5, 10287488), (8, 6429680), (10, 5143744), (16, 3214840), (20, 2571872), (32, 1607420), (40, 1285936), (64, 803710), (80, 642968), (128, 401855), (160, 321484), (179, 287360), (320, 160742), (358, 143680), (449, 114560), (640, 80371), (716, 71840), (895, 57472), (898, 57280), (1432, 35920), (1790, 28736), (1796, 28640), (2245, 22912), (2864, 17960), (3580, 14368), (3592, 14320), (4490, 11456), (5728, 8980), (7160, 7184)]