257278468

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 486158400

約数和(自身を除く): 228879932

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 181, 236, 317, 362, 634, 724, 1121, 1268, 2242, 3439, 4484, 6023, 6878, 10679, 12046, 13756, 18703, 21358, 24092, 37406, 42716, 57377, 74812, 114754, 202901, 229508, 355357, 405802, 710714, 811604, 1090163, 1421428, 2180326, 3385243, 4360652, 6770486, 13540972, 64319617, 128639234, 257278468]

約数ペア:

[(1, 257278468), (2, 128639234), (4, 64319617), (19, 13540972), (38, 6770486), (59, 4360652), (76, 3385243), (118, 2180326), (181, 1421428), (236, 1090163), (317, 811604), (362, 710714), (634, 405802), (724, 355357), (1121, 229508), (1268, 202901), (2242, 114754), (3439, 74812), (4484, 57377), (6023, 42716), (6878, 37406), (10679, 24092), (12046, 21358), (13756, 18703)]