20212240

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3461}}^1$

素因数の和:3547

約数の個数: 40

約数和(自身を含む): 47650968

約数和(自身を除く): 27438728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3461, 5840, 6922, 13844, 17305, 27688, 34610, 55376, 69220, 138440, 252653, 276880, 505306, 1010612, 1263265, 2021224, 2526530, 4042448, 5053060, 10106120, 20212240]

約数ペア:

[(1, 20212240), (2, 10106120), (4, 5053060), (5, 4042448), (8, 2526530), (10, 2021224), (16, 1263265), (20, 1010612), (40, 505306), (73, 276880), (80, 252653), (146, 138440), (292, 69220), (365, 55376), (584, 34610), (730, 27688), (1168, 17305), (1460, 13844), (2920, 6922), (3461, 5840)]