28808766

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{367}}^1$

素因数の和:478

約数の個数: 72

約数和(自身を含む): 73625760

約数和(自身を除く): 44816994

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 89, 98, 126, 147, 178, 267, 294, 367, 441, 534, 623, 734, 801, 882, 1101, 1246, 1602, 1869, 2202, 2569, 3303, 3738, 4361, 5138, 5607, 6606, 7707, 8722, 11214, 13083, 15414, 17983, 23121, 26166, 32663, 35966, 39249, 46242, 53949, 65326, 78498, 97989, 107898, 161847, 195978, 228641, 293967, 323694, 457282, 587934, 685923, 1371846, 1600487, 2057769, 3200974, 4115538, 4801461, 9602922, 14404383, 28808766]

約数ペア:

[(1, 28808766), (2, 14404383), (3, 9602922), (6, 4801461), (7, 4115538), (9, 3200974), (14, 2057769), (18, 1600487), (21, 1371846), (42, 685923), (49, 587934), (63, 457282), (89, 323694), (98, 293967), (126, 228641), (147, 195978), (178, 161847), (267, 107898), (294, 97989), (367, 78498), (441, 65326), (534, 53949), (623, 46242), (734, 39249), (801, 35966), (882, 32663), (1101, 26166), (1246, 23121), (1602, 17983), (1869, 15414), (2202, 13083), (2569, 11214), (3303, 8722), (3738, 7707), (4361, 6606), (5138, 5607)]