18698890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1231}}^1$

素因数の和:1283

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 21750134

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1231, 1519, 2170, 2462, 3038, 6155, 7595, 8617, 12310, 15190, 17234, 38161, 43085, 60319, 76322, 86170, 120638, 190805, 267127, 301595, 381610, 534254, 603190, 1335635, 1869889, 2671270, 3739778, 9349445, 18698890]

約数ペア:

[(1, 18698890), (2, 9349445), (5, 3739778), (7, 2671270), (10, 1869889), (14, 1335635), (31, 603190), (35, 534254), (49, 381610), (62, 301595), (70, 267127), (98, 190805), (155, 120638), (217, 86170), (245, 76322), (310, 60319), (434, 43085), (490, 38161), (1085, 17234), (1231, 15190), (1519, 12310), (2170, 8617), (2462, 7595), (3038, 6155)]