291210127720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{119348413}}^1$

素因数の和:119348485

約数の個数: 32

約数和(自身を含む): 665964150120

約数和(自身を除く): 374754022400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 119348413, 238696826, 477393652, 596742065, 954787304, 1193484130, 2386968260, 4773936520, 7280253193, 14560506386, 29121012772, 36401265965, 58242025544, 72802531930, 145605063860, 291210127720]

約数ペア:

[(1, 291210127720), (2, 145605063860), (4, 72802531930), (5, 58242025544), (8, 36401265965), (10, 29121012772), (20, 14560506386), (40, 7280253193), (61, 4773936520), (122, 2386968260), (244, 1193484130), (305, 954787304), (488, 596742065), (610, 477393652), (1220, 238696826), (2440, 119348413)]