15782720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:128

約数の個数: 112

約数和(自身を含む): 40770048

約数和(自身を除く): 24987328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 43, 62, 64, 74, 80, 86, 124, 148, 155, 160, 172, 185, 215, 248, 296, 310, 320, 344, 370, 430, 496, 592, 620, 688, 740, 860, 992, 1147, 1184, 1240, 1333, 1376, 1480, 1591, 1720, 1984, 2294, 2368, 2480, 2666, 2752, 2960, 3182, 3440, 4588, 4960, 5332, 5735, 5920, 6364, 6665, 6880, 7955, 9176, 9920, 10664, 11470, 11840, 12728, 13330, 13760, 15910, 18352, 21328, 22940, 25456, 26660, 31820, 36704, 42656, 45880, 49321, 50912, 53320, 63640, 73408, 85312, 91760, 98642, 101824, 106640, 127280, 183520, 197284, 213280, 246605, 254560, 367040, 394568, 426560, 493210, 509120, 789136, 986420, 1578272, 1972840, 3156544, 3945680, 7891360, 15782720]

約数ペア:

[(1, 15782720), (2, 7891360), (4, 3945680), (5, 3156544), (8, 1972840), (10, 1578272), (16, 986420), (20, 789136), (31, 509120), (32, 493210), (37, 426560), (40, 394568), (43, 367040), (62, 254560), (64, 246605), (74, 213280), (80, 197284), (86, 183520), (124, 127280), (148, 106640), (155, 101824), (160, 98642), (172, 91760), (185, 85312), (215, 73408), (248, 63640), (296, 53320), (310, 50912), (320, 49321), (344, 45880), (370, 42656), (430, 36704), (496, 31820), (592, 26660), (620, 25456), (688, 22940), (740, 21328), (860, 18352), (992, 15910), (1147, 13760), (1184, 13330), (1240, 12728), (1333, 11840), (1376, 11470), (1480, 10664), (1591, 9920), (1720, 9176), (1984, 7955), (2294, 6880), (2368, 6665), (2480, 6364), (2666, 5920), (2752, 5735), (2960, 5332), (3182, 4960), (3440, 4588)]