18655264

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{503}}^1$

素因数の和:593

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20717216

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 61, 76, 122, 152, 244, 304, 488, 503, 608, 976, 1006, 1159, 1952, 2012, 2318, 4024, 4636, 8048, 9272, 9557, 16096, 18544, 19114, 30683, 37088, 38228, 61366, 76456, 122732, 152912, 245464, 305824, 490928, 582977, 981856, 1165954, 2331908, 4663816, 9327632, 18655264]

約数ペア:

[(1, 18655264), (2, 9327632), (4, 4663816), (8, 2331908), (16, 1165954), (19, 981856), (32, 582977), (38, 490928), (61, 305824), (76, 245464), (122, 152912), (152, 122732), (244, 76456), (304, 61366), (488, 38228), (503, 37088), (608, 30683), (976, 19114), (1006, 18544), (1159, 16096), (1952, 9557), (2012, 9272), (2318, 8048), (4024, 4636)]