78281820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14029}}^1$

素因数の和:14075

約数の個数: 72

約数和(自身を含む): 245132160

約数和(自身を除く): 166850340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 14029, 28058, 42087, 56116, 70145, 84174, 126261, 140290, 168348, 210435, 252522, 280580, 420870, 434899, 505044, 631305, 841740, 869798, 1262610, 1304697, 1739596, 2174495, 2525220, 2609394, 3914091, 4348990, 5218788, 6523485, 7828182, 8697980, 13046970, 15656364, 19570455, 26093940, 39140910, 78281820]

約数ペア:

[(1, 78281820), (2, 39140910), (3, 26093940), (4, 19570455), (5, 15656364), (6, 13046970), (9, 8697980), (10, 7828182), (12, 6523485), (15, 5218788), (18, 4348990), (20, 3914091), (30, 2609394), (31, 2525220), (36, 2174495), (45, 1739596), (60, 1304697), (62, 1262610), (90, 869798), (93, 841740), (124, 631305), (155, 505044), (180, 434899), (186, 420870), (279, 280580), (310, 252522), (372, 210435), (465, 168348), (558, 140290), (620, 126261), (930, 84174), (1116, 70145), (1395, 56116), (1860, 42087), (2790, 28058), (5580, 14029)]