8740340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 21168000

約数和(自身を除く): 12427660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 419, 596, 745, 838, 1043, 1490, 1676, 2086, 2095, 2933, 2980, 4172, 4190, 5215, 5866, 8380, 10430, 11732, 14665, 20860, 29330, 58660, 62431, 124862, 249724, 312155, 437017, 624310, 874034, 1248620, 1748068, 2185085, 4370170, 8740340]

約数ペア:

[(1, 8740340), (2, 4370170), (4, 2185085), (5, 1748068), (7, 1248620), (10, 874034), (14, 624310), (20, 437017), (28, 312155), (35, 249724), (70, 124862), (140, 62431), (149, 58660), (298, 29330), (419, 20860), (596, 14665), (745, 11732), (838, 10430), (1043, 8380), (1490, 5866), (1676, 5215), (2086, 4190), (2095, 4172), (2933, 2980)]