64845395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 88179840

約数和(自身を除く): 23334445

約数列:

[1, 5, 17, 23, 41, 85, 115, 205, 391, 697, 809, 943, 1955, 3485, 4045, 4715, 13753, 16031, 18607, 33169, 68765, 80155, 93035, 165845, 316319, 563873, 762887, 1581595, 2819365, 3814435, 12969079, 64845395]

約数ペア:

[(1, 64845395), (5, 12969079), (17, 3814435), (23, 2819365), (41, 1581595), (85, 762887), (115, 563873), (205, 316319), (391, 165845), (697, 93035), (809, 80155), (943, 68765), (1955, 33169), (3485, 18607), (4045, 16031), (4715, 13753)]