210460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 468720

約数和(自身を除く): 258260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 619, 1238, 2476, 3095, 6190, 10523, 12380, 21046, 42092, 52615, 105230, 210460]

約数ペア:

[(1, 210460), (2, 105230), (4, 52615), (5, 42092), (10, 21046), (17, 12380), (20, 10523), (34, 6190), (68, 3095), (85, 2476), (170, 1238), (340, 619)]