1972840

素因数分解:

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

素因数の和:122

約数の個数: 64

約数和(自身を含む): 4815360

約数和(自身を除く): 2842520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 43, 62, 74, 86, 124, 148, 155, 172, 185, 215, 248, 296, 310, 344, 370, 430, 620, 740, 860, 1147, 1240, 1333, 1480, 1591, 1720, 2294, 2666, 3182, 4588, 5332, 5735, 6364, 6665, 7955, 9176, 10664, 11470, 12728, 13330, 15910, 22940, 26660, 31820, 45880, 49321, 53320, 63640, 98642, 197284, 246605, 394568, 493210, 986420, 1972840]

約数ペア:

[(1, 1972840), (2, 986420), (4, 493210), (5, 394568), (8, 246605), (10, 197284), (20, 98642), (31, 63640), (37, 53320), (40, 49321), (43, 45880), (62, 31820), (74, 26660), (86, 22940), (124, 15910), (148, 13330), (155, 12728), (172, 11470), (185, 10664), (215, 9176), (248, 7955), (296, 6665), (310, 6364), (344, 5735), (370, 5332), (430, 4588), (620, 3182), (740, 2666), (860, 2294), (1147, 1720), (1240, 1591), (1333, 1480)]