51117720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:477

約数の個数: 128

約数和(自身を含む): 163339200

約数和(自身を除く): 112221480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 37, 40, 58, 60, 74, 87, 111, 116, 120, 145, 148, 174, 185, 222, 232, 290, 296, 348, 370, 397, 435, 444, 555, 580, 696, 740, 794, 870, 888, 1073, 1110, 1160, 1191, 1480, 1588, 1740, 1985, 2146, 2220, 2382, 3176, 3219, 3480, 3970, 4292, 4440, 4764, 5365, 5955, 6438, 7940, 8584, 9528, 10730, 11513, 11910, 12876, 14689, 15880, 16095, 21460, 23026, 23820, 25752, 29378, 32190, 34539, 42920, 44067, 46052, 47640, 57565, 58756, 64380, 69078, 73445, 88134, 92104, 115130, 117512, 128760, 138156, 146890, 172695, 176268, 220335, 230260, 276312, 293780, 345390, 352536, 425981, 440670, 460520, 587560, 690780, 851962, 881340, 1277943, 1381560, 1703924, 1762680, 2129905, 2555886, 3407848, 4259810, 5111772, 6389715, 8519620, 10223544, 12779430, 17039240, 25558860, 51117720]

約数ペア:

[(1, 51117720), (2, 25558860), (3, 17039240), (4, 12779430), (5, 10223544), (6, 8519620), (8, 6389715), (10, 5111772), (12, 4259810), (15, 3407848), (20, 2555886), (24, 2129905), (29, 1762680), (30, 1703924), (37, 1381560), (40, 1277943), (58, 881340), (60, 851962), (74, 690780), (87, 587560), (111, 460520), (116, 440670), (120, 425981), (145, 352536), (148, 345390), (174, 293780), (185, 276312), (222, 230260), (232, 220335), (290, 176268), (296, 172695), (348, 146890), (370, 138156), (397, 128760), (435, 117512), (444, 115130), (555, 92104), (580, 88134), (696, 73445), (740, 69078), (794, 64380), (870, 58756), (888, 57565), (1073, 47640), (1110, 46052), (1160, 44067), (1191, 42920), (1480, 34539), (1588, 32190), (1740, 29378), (1985, 25752), (2146, 23820), (2220, 23026), (2382, 21460), (3176, 16095), (3219, 15880), (3480, 14689), (3970, 12876), (4292, 11910), (4440, 11513), (4764, 10730), (5365, 9528), (5955, 8584), (6438, 7940)]