20798670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 53374464

約数和(自身を除く): 32575794

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 43, 46, 69, 86, 115, 129, 138, 215, 230, 258, 345, 430, 645, 690, 701, 989, 1290, 1402, 1978, 2103, 2967, 3505, 4206, 4945, 5934, 7010, 9890, 10515, 14835, 16123, 21030, 29670, 30143, 32246, 48369, 60286, 80615, 90429, 96738, 150715, 161230, 180858, 241845, 301430, 452145, 483690, 693289, 904290, 1386578, 2079867, 3466445, 4159734, 6932890, 10399335, 20798670]

約数ペア:

[(1, 20798670), (2, 10399335), (3, 6932890), (5, 4159734), (6, 3466445), (10, 2079867), (15, 1386578), (23, 904290), (30, 693289), (43, 483690), (46, 452145), (69, 301430), (86, 241845), (115, 180858), (129, 161230), (138, 150715), (215, 96738), (230, 90429), (258, 80615), (345, 60286), (430, 48369), (645, 32246), (690, 30143), (701, 29670), (989, 21030), (1290, 16123), (1402, 14835), (1978, 10515), (2103, 9890), (2967, 7010), (3505, 5934), (4206, 4945)]