208366960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{439}}^1$

素因数の和:818

約数の個数: 80

約数和(自身を含む): 515592000

約数和(自身を除く): 307225040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 349, 439, 680, 698, 878, 1360, 1396, 1745, 1756, 2195, 2792, 3490, 3512, 4390, 5584, 5933, 6980, 7024, 7463, 8780, 11866, 13960, 14926, 17560, 23732, 27920, 29665, 29852, 35120, 37315, 47464, 59330, 59704, 74630, 94928, 118660, 119408, 149260, 153211, 237320, 298520, 306422, 474640, 597040, 612844, 766055, 1225688, 1532110, 2451376, 2604587, 3064220, 5209174, 6128440, 10418348, 12256880, 13022935, 20836696, 26045870, 41673392, 52091740, 104183480, 208366960]

約数ペア:

[(1, 208366960), (2, 104183480), (4, 52091740), (5, 41673392), (8, 26045870), (10, 20836696), (16, 13022935), (17, 12256880), (20, 10418348), (34, 6128440), (40, 5209174), (68, 3064220), (80, 2604587), (85, 2451376), (136, 1532110), (170, 1225688), (272, 766055), (340, 612844), (349, 597040), (439, 474640), (680, 306422), (698, 298520), (878, 237320), (1360, 153211), (1396, 149260), (1745, 119408), (1756, 118660), (2195, 94928), (2792, 74630), (3490, 59704), (3512, 59330), (4390, 47464), (5584, 37315), (5933, 35120), (6980, 29852), (7024, 29665), (7463, 27920), (8780, 23732), (11866, 17560), (13960, 14926)]