27939680

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 70253568

約数和(自身を除く): 42313888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 80, 86, 124, 131, 155, 160, 172, 215, 248, 262, 310, 344, 430, 496, 524, 620, 655, 688, 860, 992, 1048, 1240, 1310, 1333, 1376, 1720, 2096, 2480, 2620, 2666, 3440, 4061, 4192, 4960, 5240, 5332, 5633, 6665, 6880, 8122, 10480, 10664, 11266, 13330, 16244, 20305, 20960, 21328, 22532, 26660, 28165, 32488, 40610, 42656, 45064, 53320, 56330, 64976, 81220, 90128, 106640, 112660, 129952, 162440, 174623, 180256, 213280, 225320, 324880, 349246, 450640, 649760, 698492, 873115, 901280, 1396984, 1746230, 2793968, 3492460, 5587936, 6984920, 13969840, 27939680]

約数ペア:

[(1, 27939680), (2, 13969840), (4, 6984920), (5, 5587936), (8, 3492460), (10, 2793968), (16, 1746230), (20, 1396984), (31, 901280), (32, 873115), (40, 698492), (43, 649760), (62, 450640), (80, 349246), (86, 324880), (124, 225320), (131, 213280), (155, 180256), (160, 174623), (172, 162440), (215, 129952), (248, 112660), (262, 106640), (310, 90128), (344, 81220), (430, 64976), (496, 56330), (524, 53320), (620, 45064), (655, 42656), (688, 40610), (860, 32488), (992, 28165), (1048, 26660), (1240, 22532), (1310, 21328), (1333, 20960), (1376, 20305), (1720, 16244), (2096, 13330), (2480, 11266), (2620, 10664), (2666, 10480), (3440, 8122), (4061, 6880), (4192, 6665), (4960, 5633), (5240, 5332)]