408804940

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1\times {\mathrm{1039}}^1$

素因数の和:1342

約数の個数: 48

約数和(自身を含む): 872202240

約数和(自身を除く): 463397300

約数列:

[1, 2, 4, 5, 10, 20, 103, 191, 206, 382, 412, 515, 764, 955, 1030, 1039, 1910, 2060, 2078, 3820, 4156, 5195, 10390, 19673, 20780, 39346, 78692, 98365, 107017, 196730, 198449, 214034, 393460, 396898, 428068, 535085, 793796, 992245, 1070170, 1984490, 2140340, 3968980, 20440247, 40880494, 81760988, 102201235, 204402470, 408804940]

約数ペア:

[(1, 408804940), (2, 204402470), (4, 102201235), (5, 81760988), (10, 40880494), (20, 20440247), (103, 3968980), (191, 2140340), (206, 1984490), (382, 1070170), (412, 992245), (515, 793796), (764, 535085), (955, 428068), (1030, 396898), (1039, 393460), (1910, 214034), (2060, 198449), (2078, 196730), (3820, 107017), (4156, 98365), (5195, 78692), (10390, 39346), (19673, 20780)]