19088720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 32336560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 383, 445, 560, 623, 712, 766, 890, 1246, 1424, 1532, 1780, 1915, 2492, 2681, 3064, 3115, 3560, 3830, 4984, 5362, 6128, 6230, 7120, 7660, 9968, 10724, 12460, 13405, 15320, 21448, 24920, 26810, 30640, 34087, 42896, 49840, 53620, 68174, 107240, 136348, 170435, 214480, 238609, 272696, 340870, 477218, 545392, 681740, 954436, 1193045, 1363480, 1908872, 2386090, 2726960, 3817744, 4772180, 9544360, 19088720]

約数ペア:

[(1, 19088720), (2, 9544360), (4, 4772180), (5, 3817744), (7, 2726960), (8, 2386090), (10, 1908872), (14, 1363480), (16, 1193045), (20, 954436), (28, 681740), (35, 545392), (40, 477218), (56, 340870), (70, 272696), (80, 238609), (89, 214480), (112, 170435), (140, 136348), (178, 107240), (280, 68174), (356, 53620), (383, 49840), (445, 42896), (560, 34087), (623, 30640), (712, 26810), (766, 24920), (890, 21448), (1246, 15320), (1424, 13405), (1532, 12460), (1780, 10724), (1915, 9968), (2492, 7660), (2681, 7120), (3064, 6230), (3115, 6128), (3560, 5362), (3830, 4984)]