3998740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 9374400

約数和(自身を除く): 5375660

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 619, 646, 1238, 1292, 1615, 2476, 3095, 3230, 6190, 6460, 10523, 11761, 12380, 21046, 23522, 42092, 47044, 52615, 58805, 105230, 117610, 199937, 210460, 235220, 399874, 799748, 999685, 1999370, 3998740]

約数ペア:

[(1, 3998740), (2, 1999370), (4, 999685), (5, 799748), (10, 399874), (17, 235220), (19, 210460), (20, 199937), (34, 117610), (38, 105230), (68, 58805), (76, 52615), (85, 47044), (95, 42092), (170, 23522), (190, 21046), (323, 12380), (340, 11761), (380, 10523), (619, 6460), (646, 6190), (1238, 3230), (1292, 3095), (1615, 2476)]