28984405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 10362155

約数列:

[1, 5, 17, 19, 85, 95, 131, 137, 323, 655, 685, 1615, 2227, 2329, 2489, 2603, 11135, 11645, 12445, 13015, 17947, 42313, 44251, 89735, 211565, 221255, 305099, 340993, 1525495, 1704965, 5796881, 28984405]

約数ペア:

[(1, 28984405), (5, 5796881), (17, 1704965), (19, 1525495), (85, 340993), (95, 305099), (131, 221255), (137, 211565), (323, 89735), (655, 44251), (685, 42313), (1615, 17947), (2227, 13015), (2329, 12445), (2489, 11645), (2603, 11135)]