7997480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 20088000

約数和(自身を除く): 12090520

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 619, 646, 680, 760, 1238, 1292, 1615, 2476, 2584, 3095, 3230, 4952, 6190, 6460, 10523, 11761, 12380, 12920, 21046, 23522, 24760, 42092, 47044, 52615, 58805, 84184, 94088, 105230, 117610, 199937, 210460, 235220, 399874, 420920, 470440, 799748, 999685, 1599496, 1999370, 3998740, 7997480]

約数ペア:

[(1, 7997480), (2, 3998740), (4, 1999370), (5, 1599496), (8, 999685), (10, 799748), (17, 470440), (19, 420920), (20, 399874), (34, 235220), (38, 210460), (40, 199937), (68, 117610), (76, 105230), (85, 94088), (95, 84184), (136, 58805), (152, 52615), (170, 47044), (190, 42092), (323, 24760), (340, 23522), (380, 21046), (619, 12920), (646, 12380), (680, 11761), (760, 10523), (1238, 6460), (1292, 6190), (1615, 4952), (2476, 3230), (2584, 3095)]