11900980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{503}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 30989952

約数和(自身を除く): 19088972

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 503, 676, 845, 910, 1006, 1183, 1690, 1820, 2012, 2366, 2515, 3380, 3521, 4732, 5030, 5915, 6539, 7042, 10060, 11830, 13078, 14084, 17605, 23660, 26156, 32695, 35210, 45773, 65390, 70420, 85007, 91546, 130780, 170014, 183092, 228865, 340028, 425035, 457730, 595049, 850070, 915460, 1190098, 1700140, 2380196, 2975245, 5950490, 11900980]

約数ペア:

[(1, 11900980), (2, 5950490), (4, 2975245), (5, 2380196), (7, 1700140), (10, 1190098), (13, 915460), (14, 850070), (20, 595049), (26, 457730), (28, 425035), (35, 340028), (52, 228865), (65, 183092), (70, 170014), (91, 130780), (130, 91546), (140, 85007), (169, 70420), (182, 65390), (260, 45773), (338, 35210), (364, 32695), (455, 26156), (503, 23660), (676, 17605), (845, 14084), (910, 13078), (1006, 11830), (1183, 10060), (1690, 7042), (1820, 6539), (2012, 5915), (2366, 5030), (2515, 4732), (3380, 3521)]