42920020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:425

約数の個数: 96

約数和(自身を含む): 108662400

約数和(自身を除く): 65742380

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 43, 44, 52, 55, 65, 86, 110, 130, 143, 172, 215, 220, 260, 286, 349, 430, 473, 559, 572, 698, 715, 860, 946, 1118, 1396, 1430, 1745, 1892, 2236, 2365, 2795, 2860, 3490, 3839, 4537, 4730, 5590, 6149, 6980, 7678, 9074, 9460, 11180, 12298, 15007, 15356, 18148, 19195, 22685, 24596, 30014, 30745, 38390, 45370, 49907, 60028, 61490, 75035, 76780, 90740, 99814, 122980, 150070, 165077, 195091, 199628, 249535, 300140, 330154, 390182, 499070, 660308, 780364, 825385, 975455, 998140, 1650770, 1950910, 2146001, 3301540, 3901820, 4292002, 8584004, 10730005, 21460010, 42920020]

約数ペア:

[(1, 42920020), (2, 21460010), (4, 10730005), (5, 8584004), (10, 4292002), (11, 3901820), (13, 3301540), (20, 2146001), (22, 1950910), (26, 1650770), (43, 998140), (44, 975455), (52, 825385), (55, 780364), (65, 660308), (86, 499070), (110, 390182), (130, 330154), (143, 300140), (172, 249535), (215, 199628), (220, 195091), (260, 165077), (286, 150070), (349, 122980), (430, 99814), (473, 90740), (559, 76780), (572, 75035), (698, 61490), (715, 60028), (860, 49907), (946, 45370), (1118, 38390), (1396, 30745), (1430, 30014), (1745, 24596), (1892, 22685), (2236, 19195), (2365, 18148), (2795, 15356), (2860, 15007), (3490, 12298), (3839, 11180), (4537, 9460), (4730, 9074), (5590, 7678), (6149, 6980)]