217889680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1223}}^1$

素因数の和:1384

約数の個数: 80

約数和(自身を含む): 540929664

約数和(自身を除く): 323039984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 131, 136, 170, 262, 272, 340, 524, 655, 680, 1048, 1223, 1310, 1360, 2096, 2227, 2446, 2620, 4454, 4892, 5240, 6115, 8908, 9784, 10480, 11135, 12230, 17816, 19568, 20791, 22270, 24460, 35632, 41582, 44540, 48920, 83164, 89080, 97840, 103955, 160213, 166328, 178160, 207910, 320426, 332656, 415820, 640852, 801065, 831640, 1281704, 1602130, 1663280, 2563408, 2723621, 3204260, 5447242, 6408520, 10894484, 12817040, 13618105, 21788968, 27236210, 43577936, 54472420, 108944840, 217889680]

約数ペア:

[(1, 217889680), (2, 108944840), (4, 54472420), (5, 43577936), (8, 27236210), (10, 21788968), (16, 13618105), (17, 12817040), (20, 10894484), (34, 6408520), (40, 5447242), (68, 3204260), (80, 2723621), (85, 2563408), (131, 1663280), (136, 1602130), (170, 1281704), (262, 831640), (272, 801065), (340, 640852), (524, 415820), (655, 332656), (680, 320426), (1048, 207910), (1223, 178160), (1310, 166328), (1360, 160213), (2096, 103955), (2227, 97840), (2446, 89080), (2620, 83164), (4454, 48920), (4892, 44540), (5240, 41582), (6115, 35632), (8908, 24460), (9784, 22270), (10480, 20791), (11135, 19568), (12230, 17816)]