681199778

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{11621}}^1$

素因数の和:11762

約数の個数: 32

約数和(自身を含む): 1204968960

約数和(自身を除く): 523769182

約数列:

[1, 2, 7, 14, 53, 79, 106, 158, 371, 553, 742, 1106, 4187, 8374, 11621, 23242, 29309, 58618, 81347, 162694, 615913, 918059, 1231826, 1836118, 4311391, 6426413, 8622782, 12852826, 48657127, 97314254, 340599889, 681199778]

約数ペア:

[(1, 681199778), (2, 340599889), (7, 97314254), (14, 48657127), (53, 12852826), (79, 8622782), (106, 6426413), (158, 4311391), (371, 1836118), (553, 1231826), (742, 918059), (1106, 615913), (4187, 162694), (8374, 81347), (11621, 58618), (23242, 29309)]