187438940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42407}}^1$

素因数の和:42446

約数の個数: 48

約数和(自身を含む): 448846272

約数和(自身を除く): 261407332

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 42407, 84814, 169628, 212035, 424070, 551291, 720919, 848140, 1102582, 1441838, 2205164, 2756455, 2883676, 3604595, 5512910, 7209190, 9371947, 11025820, 14418380, 18743894, 37487788, 46859735, 93719470, 187438940]

約数ペア:

[(1, 187438940), (2, 93719470), (4, 46859735), (5, 37487788), (10, 18743894), (13, 14418380), (17, 11025820), (20, 9371947), (26, 7209190), (34, 5512910), (52, 3604595), (65, 2883676), (68, 2756455), (85, 2205164), (130, 1441838), (170, 1102582), (221, 848140), (260, 720919), (340, 551291), (442, 424070), (884, 212035), (1105, 169628), (2210, 84814), (4420, 42407)]