27943760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 70943376

約数和(自身を除く): 42999616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 277, 388, 485, 520, 554, 776, 970, 1040, 1108, 1261, 1385, 1552, 1940, 2216, 2522, 2770, 3601, 3880, 4432, 5044, 5540, 6305, 7202, 7760, 10088, 11080, 12610, 14404, 18005, 20176, 22160, 25220, 26869, 28808, 36010, 50440, 53738, 57616, 72020, 100880, 107476, 134345, 144040, 214952, 268690, 288080, 349297, 429904, 537380, 698594, 1074760, 1397188, 1746485, 2149520, 2794376, 3492970, 5588752, 6985940, 13971880, 27943760]

約数ペア:

[(1, 27943760), (2, 13971880), (4, 6985940), (5, 5588752), (8, 3492970), (10, 2794376), (13, 2149520), (16, 1746485), (20, 1397188), (26, 1074760), (40, 698594), (52, 537380), (65, 429904), (80, 349297), (97, 288080), (104, 268690), (130, 214952), (194, 144040), (208, 134345), (260, 107476), (277, 100880), (388, 72020), (485, 57616), (520, 53738), (554, 50440), (776, 36010), (970, 28808), (1040, 26869), (1108, 25220), (1261, 22160), (1385, 20176), (1552, 18005), (1940, 14404), (2216, 12610), (2522, 11080), (2770, 10088), (3601, 7760), (3880, 7202), (4432, 6305), (5044, 5540)]