4320980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 9737280

約数和(自身を除く): 5416300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 137, 166, 190, 274, 332, 380, 415, 548, 685, 830, 1370, 1577, 1660, 2603, 2740, 3154, 5206, 6308, 7885, 10412, 11371, 13015, 15770, 22742, 26030, 31540, 45484, 52060, 56855, 113710, 216049, 227420, 432098, 864196, 1080245, 2160490, 4320980]

約数ペア:

[(1, 4320980), (2, 2160490), (4, 1080245), (5, 864196), (10, 432098), (19, 227420), (20, 216049), (38, 113710), (76, 56855), (83, 52060), (95, 45484), (137, 31540), (166, 26030), (190, 22742), (274, 15770), (332, 13015), (380, 11371), (415, 10412), (548, 7885), (685, 6308), (830, 5206), (1370, 3154), (1577, 2740), (1660, 2603)]