208554780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{70937}}^1$

素因数の和:70963

約数の個数: 72

約数和(自身を含む): 679302288

約数和(自身を除く): 470747508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 70937, 141874, 212811, 283748, 354685, 425622, 496559, 709370, 851244, 993118, 1064055, 1418740, 1489677, 1986236, 2128110, 2482795, 2979354, 3475913, 4256220, 4965590, 5958708, 6951826, 7448385, 9931180, 10427739, 13903652, 14896770, 17379565, 20855478, 29793540, 34759130, 41710956, 52138695, 69518260, 104277390, 208554780]

約数ペア:

[(1, 208554780), (2, 104277390), (3, 69518260), (4, 52138695), (5, 41710956), (6, 34759130), (7, 29793540), (10, 20855478), (12, 17379565), (14, 14896770), (15, 13903652), (20, 10427739), (21, 9931180), (28, 7448385), (30, 6951826), (35, 5958708), (42, 4965590), (49, 4256220), (60, 3475913), (70, 2979354), (84, 2482795), (98, 2128110), (105, 1986236), (140, 1489677), (147, 1418740), (196, 1064055), (210, 993118), (245, 851244), (294, 709370), (420, 496559), (490, 425622), (588, 354685), (735, 283748), (980, 212811), (1470, 141874), (2940, 70937)]