51293840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:137

約数の個数: 160

約数和(自身を含む): 139324416

約数和(自身を除く): 88030576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 37, 40, 43, 52, 62, 65, 74, 80, 86, 104, 124, 130, 148, 155, 172, 185, 208, 215, 248, 260, 296, 310, 344, 370, 403, 430, 481, 496, 520, 559, 592, 620, 688, 740, 806, 860, 962, 1040, 1118, 1147, 1240, 1333, 1480, 1591, 1612, 1720, 1924, 2015, 2236, 2294, 2405, 2480, 2666, 2795, 2960, 3182, 3224, 3440, 3848, 4030, 4472, 4588, 4810, 5332, 5590, 5735, 6364, 6448, 6665, 7696, 7955, 8060, 8944, 9176, 9620, 10664, 11180, 11470, 12728, 13330, 14911, 15910, 16120, 17329, 18352, 19240, 20683, 21328, 22360, 22940, 25456, 26660, 29822, 31820, 32240, 34658, 38480, 41366, 44720, 45880, 49321, 53320, 59644, 63640, 69316, 74555, 82732, 86645, 91760, 98642, 103415, 106640, 119288, 127280, 138632, 149110, 165464, 173290, 197284, 206830, 238576, 246605, 277264, 298220, 330928, 346580, 394568, 413660, 493210, 596440, 641173, 693160, 789136, 827320, 986420, 1192880, 1282346, 1386320, 1654640, 1972840, 2564692, 3205865, 3945680, 5129384, 6411730, 10258768, 12823460, 25646920, 51293840]

約数ペア:

[(1, 51293840), (2, 25646920), (4, 12823460), (5, 10258768), (8, 6411730), (10, 5129384), (13, 3945680), (16, 3205865), (20, 2564692), (26, 1972840), (31, 1654640), (37, 1386320), (40, 1282346), (43, 1192880), (52, 986420), (62, 827320), (65, 789136), (74, 693160), (80, 641173), (86, 596440), (104, 493210), (124, 413660), (130, 394568), (148, 346580), (155, 330928), (172, 298220), (185, 277264), (208, 246605), (215, 238576), (248, 206830), (260, 197284), (296, 173290), (310, 165464), (344, 149110), (370, 138632), (403, 127280), (430, 119288), (481, 106640), (496, 103415), (520, 98642), (559, 91760), (592, 86645), (620, 82732), (688, 74555), (740, 69316), (806, 63640), (860, 59644), (962, 53320), (1040, 49321), (1118, 45880), (1147, 44720), (1240, 41366), (1333, 38480), (1480, 34658), (1591, 32240), (1612, 31820), (1720, 29822), (1924, 26660), (2015, 25456), (2236, 22940), (2294, 22360), (2405, 21328), (2480, 20683), (2666, 19240), (2795, 18352), (2960, 17329), (3182, 16120), (3224, 15910), (3440, 14911), (3848, 13330), (4030, 12728), (4472, 11470), (4588, 11180), (4810, 10664), (5332, 9620), (5590, 9176), (5735, 8944), (6364, 8060), (6448, 7955), (6665, 7696)]