25646920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 67415040

約数和(自身を除く): 41768120

約数列:

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

約数ペア:

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