128738520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1291}}^1$

素因数の和:1585

約数の個数: 96

約数和(自身を含む): 420235920

約数和(自身を除く): 291497400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 277, 360, 554, 831, 1108, 1291, 1385, 1662, 2216, 2493, 2582, 2770, 3324, 3873, 4155, 4986, 5164, 5540, 6455, 6648, 7746, 8310, 9972, 10328, 11080, 11619, 12465, 12910, 15492, 16620, 19365, 19944, 23238, 24930, 25820, 30984, 33240, 38730, 46476, 49860, 51640, 58095, 77460, 92952, 99720, 116190, 154920, 232380, 357607, 464760, 715214, 1072821, 1430428, 1788035, 2145642, 2860856, 3218463, 3576070, 4291284, 5364105, 6436926, 7152140, 8582568, 10728210, 12873852, 14304280, 16092315, 21456420, 25747704, 32184630, 42912840, 64369260, 128738520]

約数ペア:

[(1, 128738520), (2, 64369260), (3, 42912840), (4, 32184630), (5, 25747704), (6, 21456420), (8, 16092315), (9, 14304280), (10, 12873852), (12, 10728210), (15, 8582568), (18, 7152140), (20, 6436926), (24, 5364105), (30, 4291284), (36, 3576070), (40, 3218463), (45, 2860856), (60, 2145642), (72, 1788035), (90, 1430428), (120, 1072821), (180, 715214), (277, 464760), (360, 357607), (554, 232380), (831, 154920), (1108, 116190), (1291, 99720), (1385, 92952), (1662, 77460), (2216, 58095), (2493, 51640), (2582, 49860), (2770, 46476), (3324, 38730), (3873, 33240), (4155, 30984), (4986, 25820), (5164, 24930), (5540, 23238), (6455, 19944), (6648, 19365), (7746, 16620), (8310, 15492), (9972, 12910), (10328, 12465), (11080, 11619)]