19766325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 35622720

約数和(自身を除く): 15856395

約数列:

[1, 3, 5, 15, 17, 25, 37, 51, 75, 85, 111, 185, 255, 419, 425, 555, 629, 925, 1257, 1275, 1887, 2095, 2775, 3145, 6285, 7123, 9435, 10475, 15503, 15725, 21369, 31425, 35615, 46509, 47175, 77515, 106845, 178075, 232545, 263551, 387575, 534225, 790653, 1162725, 1317755, 3953265, 6588775, 19766325]

約数ペア:

[(1, 19766325), (3, 6588775), (5, 3953265), (15, 1317755), (17, 1162725), (25, 790653), (37, 534225), (51, 387575), (75, 263551), (85, 232545), (111, 178075), (185, 106845), (255, 77515), (419, 47175), (425, 46509), (555, 35615), (629, 31425), (925, 21369), (1257, 15725), (1275, 15503), (1887, 10475), (2095, 9435), (2775, 7123), (3145, 6285)]