257774972

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 574358400

約数和(自身を除く): 316583428

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 73, 89, 91, 109, 146, 178, 182, 218, 292, 356, 364, 436, 511, 623, 763, 949, 1022, 1157, 1246, 1417, 1526, 1898, 2044, 2314, 2492, 2834, 3052, 3796, 4628, 5668, 6497, 6643, 7957, 8099, 9701, 9919, 12994, 13286, 15914, 16198, 19402, 19838, 25988, 26572, 31828, 32396, 38804, 39676, 45479, 55699, 67907, 84461, 90958, 103441, 111398, 126113, 135814, 168922, 181916, 206882, 222796, 252226, 271628, 337844, 413764, 504452, 591227, 708173, 724087, 882791, 1182454, 1416346, 1448174, 1765582, 2364908, 2832692, 2896348, 3531164, 4957211, 9206249, 9914422, 18412498, 19828844, 36824996, 64443743, 128887486, 257774972]

約数ペア:

[(1, 257774972), (2, 128887486), (4, 64443743), (7, 36824996), (13, 19828844), (14, 18412498), (26, 9914422), (28, 9206249), (52, 4957211), (73, 3531164), (89, 2896348), (91, 2832692), (109, 2364908), (146, 1765582), (178, 1448174), (182, 1416346), (218, 1182454), (292, 882791), (356, 724087), (364, 708173), (436, 591227), (511, 504452), (623, 413764), (763, 337844), (949, 271628), (1022, 252226), (1157, 222796), (1246, 206882), (1417, 181916), (1526, 168922), (1898, 135814), (2044, 126113), (2314, 111398), (2492, 103441), (2834, 90958), (3052, 84461), (3796, 67907), (4628, 55699), (5668, 45479), (6497, 39676), (6643, 38804), (7957, 32396), (8099, 31828), (9701, 26572), (9919, 25988), (12994, 19838), (13286, 19402), (15914, 16198)]