18151315

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 28153440

約数和(自身を除く): 10002125

約数列:

[1, 5, 7, 13, 35, 41, 49, 65, 91, 139, 205, 245, 287, 455, 533, 637, 695, 973, 1435, 1807, 2009, 2665, 3185, 3731, 4865, 5699, 6811, 9035, 10045, 12649, 18655, 26117, 28495, 34055, 39893, 63245, 74087, 88543, 130585, 199465, 279251, 370435, 442715, 518609, 1396255, 2593045, 3630263, 18151315]

約数ペア:

[(1, 18151315), (5, 3630263), (7, 2593045), (13, 1396255), (35, 518609), (41, 442715), (49, 370435), (65, 279251), (91, 199465), (139, 130585), (205, 88543), (245, 74087), (287, 63245), (455, 39893), (533, 34055), (637, 28495), (695, 26117), (973, 18655), (1435, 12649), (1807, 10045), (2009, 9035), (2665, 6811), (3185, 5699), (3731, 4865)]