19393220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{257}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 52012800

約数和(自身を除く): 32619580

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 257, 308, 343, 385, 490, 514, 539, 686, 770, 980, 1028, 1078, 1285, 1372, 1540, 1715, 1799, 2156, 2570, 2695, 2827, 3430, 3598, 3773, 5140, 5390, 5654, 6860, 7196, 7546, 8995, 10780, 11308, 12593, 14135, 15092, 17990, 18865, 19789, 25186, 28270, 35980, 37730, 39578, 50372, 56540, 62965, 75460, 79156, 88151, 98945, 125930, 138523, 176302, 197890, 251860, 277046, 352604, 395780, 440755, 554092, 692615, 881510, 969661, 1385230, 1763020, 1939322, 2770460, 3878644, 4848305, 9696610, 19393220]

約数ペア:

[(1, 19393220), (2, 9696610), (4, 4848305), (5, 3878644), (7, 2770460), (10, 1939322), (11, 1763020), (14, 1385230), (20, 969661), (22, 881510), (28, 692615), (35, 554092), (44, 440755), (49, 395780), (55, 352604), (70, 277046), (77, 251860), (98, 197890), (110, 176302), (140, 138523), (154, 125930), (196, 98945), (220, 88151), (245, 79156), (257, 75460), (308, 62965), (343, 56540), (385, 50372), (490, 39578), (514, 37730), (539, 35980), (686, 28270), (770, 25186), (980, 19789), (1028, 18865), (1078, 17990), (1285, 15092), (1372, 14135), (1540, 12593), (1715, 11308), (1799, 10780), (2156, 8995), (2570, 7546), (2695, 7196), (2827, 6860), (3430, 5654), (3598, 5390), (3773, 5140)]