129356560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{85103}}^1$

素因数の和:85135

約数の個数: 40

約数和(自身を含む): 316586880

約数和(自身を除く): 187230320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 85103, 170206, 340412, 425515, 680824, 851030, 1361648, 1616957, 1702060, 3233914, 3404120, 6467828, 6808240, 8084785, 12935656, 16169570, 25871312, 32339140, 64678280, 129356560]

約数ペア:

[(1, 129356560), (2, 64678280), (4, 32339140), (5, 25871312), (8, 16169570), (10, 12935656), (16, 8084785), (19, 6808240), (20, 6467828), (38, 3404120), (40, 3233914), (76, 1702060), (80, 1616957), (95, 1361648), (152, 851030), (190, 680824), (304, 425515), (380, 340412), (760, 170206), (1520, 85103)]