199367120

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28001}}^1$

素因数の和:28103

約数の個数: 40

約数和(自身を含む): 468753480

約数和(自身を除く): 269386360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 28001, 56002, 112004, 140005, 224008, 280010, 448016, 560020, 1120040, 2240080, 2492089, 4984178, 9968356, 12460445, 19936712, 24920890, 39873424, 49841780, 99683560, 199367120]

約数ペア:

[(1, 199367120), (2, 99683560), (4, 49841780), (5, 39873424), (8, 24920890), (10, 19936712), (16, 12460445), (20, 9968356), (40, 4984178), (80, 2492089), (89, 2240080), (178, 1120040), (356, 560020), (445, 448016), (712, 280010), (890, 224008), (1424, 140005), (1780, 112004), (3560, 56002), (7120, 28001)]