19664800

素因数分解:

$2^5\times 5^2\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:590

約数の個数: 72

約数和(自身を含む): 49121856

約数和(自身を除く): 29457056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 80, 94, 100, 160, 188, 200, 235, 376, 400, 470, 523, 752, 800, 940, 1046, 1175, 1504, 1880, 2092, 2350, 2615, 3760, 4184, 4700, 5230, 7520, 8368, 9400, 10460, 13075, 16736, 18800, 20920, 24581, 26150, 37600, 41840, 49162, 52300, 83680, 98324, 104600, 122905, 196648, 209200, 245810, 393296, 418400, 491620, 614525, 786592, 983240, 1229050, 1966480, 2458100, 3932960, 4916200, 9832400, 19664800]

約数ペア:

[(1, 19664800), (2, 9832400), (4, 4916200), (5, 3932960), (8, 2458100), (10, 1966480), (16, 1229050), (20, 983240), (25, 786592), (32, 614525), (40, 491620), (47, 418400), (50, 393296), (80, 245810), (94, 209200), (100, 196648), (160, 122905), (188, 104600), (200, 98324), (235, 83680), (376, 52300), (400, 49162), (470, 41840), (523, 37600), (752, 26150), (800, 24581), (940, 20920), (1046, 18800), (1175, 16736), (1504, 13075), (1880, 10460), (2092, 9400), (2350, 8368), (2615, 7520), (3760, 5230), (4184, 4700)]