18140940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1039}}^1$

素因数の和:1151

約数の個数: 72

約数和(自身を含む): 55648320

約数和(自身を除く): 37507380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1039, 1164, 1455, 1746, 1940, 2078, 2910, 3117, 3492, 4156, 4365, 5195, 5820, 6234, 8730, 9351, 10390, 12468, 15585, 17460, 18702, 20780, 31170, 37404, 46755, 62340, 93510, 100783, 187020, 201566, 302349, 403132, 503915, 604698, 907047, 1007830, 1209396, 1511745, 1814094, 2015660, 3023490, 3628188, 4535235, 6046980, 9070470, 18140940]

約数ペア:

[(1, 18140940), (2, 9070470), (3, 6046980), (4, 4535235), (5, 3628188), (6, 3023490), (9, 2015660), (10, 1814094), (12, 1511745), (15, 1209396), (18, 1007830), (20, 907047), (30, 604698), (36, 503915), (45, 403132), (60, 302349), (90, 201566), (97, 187020), (180, 100783), (194, 93510), (291, 62340), (388, 46755), (485, 37404), (582, 31170), (873, 20780), (970, 18702), (1039, 17460), (1164, 15585), (1455, 12468), (1746, 10390), (1940, 9351), (2078, 8730), (2910, 6234), (3117, 5820), (3492, 5195), (4156, 4365)]