199320880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:443

約数の個数: 120

約数和(自身を含む): 519498000

約数和(自身を除く): 320177120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 121, 176, 220, 236, 242, 295, 349, 440, 472, 484, 590, 605, 649, 698, 880, 944, 968, 1180, 1210, 1298, 1396, 1745, 1936, 2360, 2420, 2596, 2792, 3245, 3490, 3839, 4720, 4840, 5192, 5584, 6490, 6980, 7139, 7678, 9680, 10384, 12980, 13960, 14278, 15356, 19195, 20591, 25960, 27920, 28556, 30712, 35695, 38390, 41182, 42229, 51920, 57112, 61424, 71390, 76780, 82364, 84458, 102955, 114224, 142780, 153560, 164728, 168916, 205910, 211145, 226501, 285560, 307120, 329456, 337832, 411820, 422290, 453002, 571120, 675664, 823640, 844580, 906004, 1132505, 1647280, 1689160, 1812008, 2265010, 2491511, 3378320, 3624016, 4530020, 4983022, 9060040, 9966044, 12457555, 18120080, 19932088, 24915110, 39864176, 49830220, 99660440, 199320880]

約数ペア:

[(1, 199320880), (2, 99660440), (4, 49830220), (5, 39864176), (8, 24915110), (10, 19932088), (11, 18120080), (16, 12457555), (20, 9966044), (22, 9060040), (40, 4983022), (44, 4530020), (55, 3624016), (59, 3378320), (80, 2491511), (88, 2265010), (110, 1812008), (118, 1689160), (121, 1647280), (176, 1132505), (220, 906004), (236, 844580), (242, 823640), (295, 675664), (349, 571120), (440, 453002), (472, 422290), (484, 411820), (590, 337832), (605, 329456), (649, 307120), (698, 285560), (880, 226501), (944, 211145), (968, 205910), (1180, 168916), (1210, 164728), (1298, 153560), (1396, 142780), (1745, 114224), (1936, 102955), (2360, 84458), (2420, 82364), (2596, 76780), (2792, 71390), (3245, 61424), (3490, 57112), (3839, 51920), (4720, 42229), (4840, 41182), (5192, 38390), (5584, 35695), (6490, 30712), (6980, 28556), (7139, 27920), (7678, 25960), (9680, 20591), (10384, 19195), (12980, 15356), (13960, 14278)]