28657944

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{8123}}^1$

素因数の和:8149

約数の個数: 72

約数和(自身を含む): 90298260

約数和(自身を除く): 61640316

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 441, 504, 588, 882, 1176, 1764, 3528, 8123, 16246, 24369, 32492, 48738, 56861, 64984, 73107, 97476, 113722, 146214, 170583, 194952, 227444, 292428, 341166, 398027, 454888, 511749, 584856, 682332, 796054, 1023498, 1194081, 1364664, 1592108, 2046996, 2388162, 3184216, 3582243, 4093992, 4776324, 7164486, 9552648, 14328972, 28657944]

約数ペア:

[(1, 28657944), (2, 14328972), (3, 9552648), (4, 7164486), (6, 4776324), (7, 4093992), (8, 3582243), (9, 3184216), (12, 2388162), (14, 2046996), (18, 1592108), (21, 1364664), (24, 1194081), (28, 1023498), (36, 796054), (42, 682332), (49, 584856), (56, 511749), (63, 454888), (72, 398027), (84, 341166), (98, 292428), (126, 227444), (147, 194952), (168, 170583), (196, 146214), (252, 113722), (294, 97476), (392, 73107), (441, 64984), (504, 56861), (588, 48738), (882, 32492), (1176, 24369), (1764, 16246), (3528, 8123)]