256979170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:587

約数の個数: 64

約数和(自身を含む): 541497600

約数和(自身を除く): 284518430

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 157, 314, 335, 349, 469, 670, 698, 785, 938, 1099, 1570, 1745, 2198, 2345, 2443, 3490, 4690, 4886, 5495, 10519, 10990, 12215, 21038, 23383, 24430, 46766, 52595, 54793, 73633, 105190, 109586, 116915, 147266, 163681, 233830, 273965, 327362, 368165, 383551, 547930, 736330, 767102, 818405, 1636810, 1917755, 3671131, 3835510, 7342262, 18355655, 25697917, 36711310, 51395834, 128489585, 256979170]

約数ペア:

[(1, 256979170), (2, 128489585), (5, 51395834), (7, 36711310), (10, 25697917), (14, 18355655), (35, 7342262), (67, 3835510), (70, 3671131), (134, 1917755), (157, 1636810), (314, 818405), (335, 767102), (349, 736330), (469, 547930), (670, 383551), (698, 368165), (785, 327362), (938, 273965), (1099, 233830), (1570, 163681), (1745, 147266), (2198, 116915), (2345, 109586), (2443, 105190), (3490, 73633), (4690, 54793), (4886, 52595), (5495, 46766), (10519, 24430), (10990, 23383), (12215, 21038)]