1279237780

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{541}}^1\times {\mathrm{619}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 2709826560

約数和(自身を除く): 1430588780

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 541, 619, 764, 955, 1082, 1238, 1910, 2164, 2476, 2705, 3095, 3820, 5410, 6190, 10820, 12380, 103331, 118229, 206662, 236458, 334879, 413324, 472916, 516655, 591145, 669758, 1033310, 1182290, 1339516, 1674395, 2066620, 2364580, 3348790, 6697580, 63961889, 127923778, 255847556, 319809445, 639618890, 1279237780]

約数ペア:

[(1, 1279237780), (2, 639618890), (4, 319809445), (5, 255847556), (10, 127923778), (20, 63961889), (191, 6697580), (382, 3348790), (541, 2364580), (619, 2066620), (764, 1674395), (955, 1339516), (1082, 1182290), (1238, 1033310), (1910, 669758), (2164, 591145), (2476, 516655), (2705, 472916), (3095, 413324), (3820, 334879), (5410, 236458), (6190, 206662), (10820, 118229), (12380, 103331)]