646006465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{881}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 866829600

約数和(自身を除く): 220823135

約数列:

[1, 5, 13, 29, 65, 145, 377, 389, 881, 1885, 1945, 4405, 5057, 11281, 11453, 25285, 25549, 56405, 57265, 127745, 146653, 332137, 342709, 733265, 1660685, 1713545, 4455217, 9938561, 22276085, 49692805, 129201293, 646006465]

約数ペア:

[(1, 646006465), (5, 129201293), (13, 49692805), (29, 22276085), (65, 9938561), (145, 4455217), (377, 1713545), (389, 1660685), (881, 733265), (1885, 342709), (1945, 332137), (4405, 146653), (5057, 127745), (11281, 57265), (11453, 56405), (25285, 25549)]