221419180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{739}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 474405120

約数和(自身を除く): 252985940

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 211, 284, 355, 422, 710, 739, 844, 1055, 1420, 1478, 2110, 2956, 3695, 4220, 7390, 14780, 14981, 29962, 52469, 59924, 74905, 104938, 149810, 155929, 209876, 262345, 299620, 311858, 524690, 623716, 779645, 1049380, 1559290, 3118580, 11070959, 22141918, 44283836, 55354795, 110709590, 221419180]

約数ペア:

[(1, 221419180), (2, 110709590), (4, 55354795), (5, 44283836), (10, 22141918), (20, 11070959), (71, 3118580), (142, 1559290), (211, 1049380), (284, 779645), (355, 623716), (422, 524690), (710, 311858), (739, 299620), (844, 262345), (1055, 209876), (1420, 155929), (1478, 149810), (2110, 104938), (2956, 74905), (3695, 59924), (4220, 52469), (7390, 29962), (14780, 14981)]