278322980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{62969}}^1$

素因数の和:63008

約数の個数: 48

約数和(自身を含む): 666474480

約数和(自身を除く): 388151500

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 62969, 125938, 251876, 314845, 629690, 818597, 1070473, 1259380, 1637194, 2140946, 3274388, 4092985, 4281892, 5352365, 8185970, 10704730, 13916149, 16371940, 21409460, 27832298, 55664596, 69580745, 139161490, 278322980]

約数ペア:

[(1, 278322980), (2, 139161490), (4, 69580745), (5, 55664596), (10, 27832298), (13, 21409460), (17, 16371940), (20, 13916149), (26, 10704730), (34, 8185970), (52, 5352365), (65, 4281892), (68, 4092985), (85, 3274388), (130, 2140946), (170, 1637194), (221, 1259380), (260, 1070473), (340, 818597), (442, 629690), (884, 314845), (1105, 251876), (2210, 125938), (4420, 62969)]