27790880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 96

約数和(自身を含む): 73156608

約数和(自身を除く): 45365728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 431, 496, 520, 620, 806, 862, 992, 1040, 1240, 1612, 1724, 2015, 2080, 2155, 2480, 3224, 3448, 4030, 4310, 4960, 5603, 6448, 6896, 8060, 8620, 11206, 12896, 13361, 13792, 16120, 17240, 22412, 26722, 28015, 32240, 34480, 44824, 53444, 56030, 64480, 66805, 68960, 89648, 106888, 112060, 133610, 173693, 179296, 213776, 224120, 267220, 347386, 427552, 448240, 534440, 694772, 868465, 896480, 1068880, 1389544, 1736930, 2137760, 2779088, 3473860, 5558176, 6947720, 13895440, 27790880]

約数ペア:

[(1, 27790880), (2, 13895440), (4, 6947720), (5, 5558176), (8, 3473860), (10, 2779088), (13, 2137760), (16, 1736930), (20, 1389544), (26, 1068880), (31, 896480), (32, 868465), (40, 694772), (52, 534440), (62, 448240), (65, 427552), (80, 347386), (104, 267220), (124, 224120), (130, 213776), (155, 179296), (160, 173693), (208, 133610), (248, 112060), (260, 106888), (310, 89648), (403, 68960), (416, 66805), (431, 64480), (496, 56030), (520, 53444), (620, 44824), (806, 34480), (862, 32240), (992, 28015), (1040, 26722), (1240, 22412), (1612, 17240), (1724, 16120), (2015, 13792), (2080, 13361), (2155, 12896), (2480, 11206), (3224, 8620), (3448, 8060), (4030, 6896), (4310, 6448), (4960, 5603)]