18841280

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{607}}^1$

素因数の和:721

約数の個数: 56

約数和(自身を含む): 45403008

約数和(自身を除く): 26561728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 607, 776, 970, 1214, 1552, 1940, 2428, 3035, 3104, 3880, 4856, 6070, 6208, 7760, 9712, 12140, 15520, 19424, 24280, 31040, 38848, 48560, 58879, 97120, 117758, 194240, 235516, 294395, 471032, 588790, 942064, 1177580, 1884128, 2355160, 3768256, 4710320, 9420640, 18841280]

約数ペア:

[(1, 18841280), (2, 9420640), (4, 4710320), (5, 3768256), (8, 2355160), (10, 1884128), (16, 1177580), (20, 942064), (32, 588790), (40, 471032), (64, 294395), (80, 235516), (97, 194240), (160, 117758), (194, 97120), (320, 58879), (388, 48560), (485, 38848), (607, 31040), (776, 24280), (970, 19424), (1214, 15520), (1552, 12140), (1940, 9712), (2428, 7760), (3035, 6208), (3104, 6070), (3880, 4856)]