31401760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:546

約数の個数: 96

約数和(自身を含む): 82639872

約数和(自身を除く): 51238112

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, 487, 496, 520, 620, 806, 974, 992, 1040, 1240, 1612, 1948, 2015, 2080, 2435, 2480, 3224, 3896, 4030, 4870, 4960, 6331, 6448, 7792, 8060, 9740, 12662, 12896, 15097, 15584, 16120, 19480, 25324, 30194, 31655, 32240, 38960, 50648, 60388, 63310, 64480, 75485, 77920, 101296, 120776, 126620, 150970, 196261, 202592, 241552, 253240, 301940, 392522, 483104, 506480, 603880, 785044, 981305, 1012960, 1207760, 1570088, 1962610, 2415520, 3140176, 3925220, 6280352, 7850440, 15700880, 31401760]

約数ペア:

[(1, 31401760), (2, 15700880), (4, 7850440), (5, 6280352), (8, 3925220), (10, 3140176), (13, 2415520), (16, 1962610), (20, 1570088), (26, 1207760), (31, 1012960), (32, 981305), (40, 785044), (52, 603880), (62, 506480), (65, 483104), (80, 392522), (104, 301940), (124, 253240), (130, 241552), (155, 202592), (160, 196261), (208, 150970), (248, 126620), (260, 120776), (310, 101296), (403, 77920), (416, 75485), (487, 64480), (496, 63310), (520, 60388), (620, 50648), (806, 38960), (974, 32240), (992, 31655), (1040, 30194), (1240, 25324), (1612, 19480), (1948, 16120), (2015, 15584), (2080, 15097), (2435, 12896), (2480, 12662), (3224, 9740), (3896, 8060), (4030, 7792), (4870, 6448), (4960, 6331)]