13971980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 32810400

約数和(自身を除く): 18838420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1549, 1804, 2255, 3098, 4510, 6196, 7745, 9020, 15490, 17039, 30980, 34078, 63509, 68156, 85195, 127018, 170390, 254036, 317545, 340780, 635090, 698599, 1270180, 1397198, 2794396, 3492995, 6985990, 13971980]

約数ペア:

[(1, 13971980), (2, 6985990), (4, 3492995), (5, 2794396), (10, 1397198), (11, 1270180), (20, 698599), (22, 635090), (41, 340780), (44, 317545), (55, 254036), (82, 170390), (110, 127018), (164, 85195), (205, 68156), (220, 63509), (410, 34078), (451, 30980), (820, 17039), (902, 15490), (1549, 9020), (1804, 7745), (2255, 6196), (3098, 4510)]