20653540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 46085760

約数和(自身を除く): 25432220

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 59, 92, 115, 118, 230, 236, 295, 460, 590, 761, 1180, 1357, 1522, 2714, 3044, 3805, 5428, 6785, 7610, 13570, 15220, 17503, 27140, 35006, 44899, 70012, 87515, 89798, 175030, 179596, 224495, 350060, 448990, 897980, 1032677, 2065354, 4130708, 5163385, 10326770, 20653540]

約数ペア:

[(1, 20653540), (2, 10326770), (4, 5163385), (5, 4130708), (10, 2065354), (20, 1032677), (23, 897980), (46, 448990), (59, 350060), (92, 224495), (115, 179596), (118, 175030), (230, 89798), (236, 87515), (295, 70012), (460, 44899), (590, 35006), (761, 27140), (1180, 17503), (1357, 15220), (1522, 13570), (2714, 7610), (3044, 6785), (3805, 5428)]