68703440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2131}}^1$

素因数の和:2188

約数の個数: 80

約数和(自身を含む): 177655296

約数和(自身を除く): 108951856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2131, 2480, 3224, 4030, 4262, 6448, 8060, 8524, 10655, 16120, 17048, 21310, 27703, 32240, 34096, 42620, 55406, 66061, 85240, 110812, 132122, 138515, 170480, 221624, 264244, 277030, 330305, 443248, 528488, 554060, 660610, 858793, 1056976, 1108120, 1321220, 1717586, 2216240, 2642440, 3435172, 4293965, 5284880, 6870344, 8587930, 13740688, 17175860, 34351720, 68703440]

約数ペア:

[(1, 68703440), (2, 34351720), (4, 17175860), (5, 13740688), (8, 8587930), (10, 6870344), (13, 5284880), (16, 4293965), (20, 3435172), (26, 2642440), (31, 2216240), (40, 1717586), (52, 1321220), (62, 1108120), (65, 1056976), (80, 858793), (104, 660610), (124, 554060), (130, 528488), (155, 443248), (208, 330305), (248, 277030), (260, 264244), (310, 221624), (403, 170480), (496, 138515), (520, 132122), (620, 110812), (806, 85240), (1040, 66061), (1240, 55406), (1612, 42620), (2015, 34096), (2131, 32240), (2480, 27703), (3224, 21310), (4030, 17048), (4262, 16120), (6448, 10655), (8060, 8524)]