291128905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{751}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 375975936

約数和(自身を除く): 84847031

約数列:

[1, 5, 31, 41, 61, 155, 205, 305, 751, 1271, 1891, 2501, 3755, 6355, 9455, 12505, 23281, 30791, 45811, 77531, 116405, 153955, 229055, 387655, 954521, 1420141, 1878251, 4772605, 7100705, 9391255, 58225781, 291128905]

約数ペア:

[(1, 291128905), (5, 58225781), (31, 9391255), (41, 7100705), (61, 4772605), (155, 1878251), (205, 1420141), (305, 954521), (751, 387655), (1271, 229055), (1891, 153955), (2501, 116405), (3755, 77531), (6355, 45811), (9455, 30791), (12505, 23281)]