123490980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2459}}^1$

素因数の和:2511

約数の個数: 120

約数和(自身を含む): 400055040

約数和(自身を除く): 276564060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 810, 837, 930, 1116, 1395, 1620, 1674, 1860, 2459, 2511, 2790, 3348, 4185, 4918, 5022, 5580, 7377, 8370, 9836, 10044, 12295, 12555, 14754, 16740, 22131, 24590, 25110, 29508, 36885, 44262, 49180, 50220, 66393, 73770, 76229, 88524, 110655, 132786, 147540, 152458, 199179, 221310, 228687, 265572, 304916, 331965, 381145, 398358, 442620, 457374, 663930, 686061, 762290, 796716, 914748, 995895, 1143435, 1327860, 1372122, 1524580, 1991790, 2058183, 2286870, 2744244, 3430305, 3983580, 4116366, 4573740, 6174549, 6860610, 8232732, 10290915, 12349098, 13721220, 20581830, 24698196, 30872745, 41163660, 61745490, 123490980]

約数ペア:

[(1, 123490980), (2, 61745490), (3, 41163660), (4, 30872745), (5, 24698196), (6, 20581830), (9, 13721220), (10, 12349098), (12, 10290915), (15, 8232732), (18, 6860610), (20, 6174549), (27, 4573740), (30, 4116366), (31, 3983580), (36, 3430305), (45, 2744244), (54, 2286870), (60, 2058183), (62, 1991790), (81, 1524580), (90, 1372122), (93, 1327860), (108, 1143435), (124, 995895), (135, 914748), (155, 796716), (162, 762290), (180, 686061), (186, 663930), (270, 457374), (279, 442620), (310, 398358), (324, 381145), (372, 331965), (405, 304916), (465, 265572), (540, 228687), (558, 221310), (620, 199179), (810, 152458), (837, 147540), (930, 132786), (1116, 110655), (1395, 88524), (1620, 76229), (1674, 73770), (1860, 66393), (2459, 50220), (2511, 49180), (2790, 44262), (3348, 36885), (4185, 29508), (4918, 25110), (5022, 24590), (5580, 22131), (7377, 16740), (8370, 14754), (9836, 12555), (10044, 12295)]