212660

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{31}}^1$

素因数の和:61

約数の個数: 48

約数和(自身を含む): 537600

約数和(自身を除く): 324940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 343, 434, 490, 620, 686, 868, 980, 1085, 1372, 1519, 1715, 2170, 3038, 3430, 4340, 6076, 6860, 7595, 10633, 15190, 21266, 30380, 42532, 53165, 106330, 212660]

約数ペア:

[(1, 212660), (2, 106330), (4, 53165), (5, 42532), (7, 30380), (10, 21266), (14, 15190), (20, 10633), (28, 7595), (31, 6860), (35, 6076), (49, 4340), (62, 3430), (70, 3038), (98, 2170), (124, 1715), (140, 1519), (155, 1372), (196, 1085), (217, 980), (245, 868), (310, 686), (343, 620), (434, 490)]