428457520

素因数分解:

$2^4\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{4909}}^1$

素因数の和:6013

約数の個数: 40

約数和(自身を含む): 997279920

約数和(自身を除く): 568822400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1091, 2182, 4364, 4909, 5455, 8728, 9818, 10910, 17456, 19636, 21820, 24545, 39272, 43640, 49090, 78544, 87280, 98180, 196360, 392720, 5355719, 10711438, 21422876, 26778595, 42845752, 53557190, 85691504, 107114380, 214228760, 428457520]

約数ペア:

[(1, 428457520), (2, 214228760), (4, 107114380), (5, 85691504), (8, 53557190), (10, 42845752), (16, 26778595), (20, 21422876), (40, 10711438), (80, 5355719), (1091, 392720), (2182, 196360), (4364, 98180), (4909, 87280), (5455, 78544), (8728, 49090), (9818, 43640), (10910, 39272), (17456, 24545), (19636, 21820)]