201998875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{631}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 273297024

約数和(自身を除く): 71298149

約数列:

[1, 5, 13, 25, 65, 125, 197, 325, 631, 985, 1625, 2561, 3155, 4925, 8203, 12805, 15775, 24625, 41015, 64025, 78875, 124307, 205075, 320125, 621535, 1025375, 1615991, 3107675, 8079955, 15538375, 40399775, 201998875]

約数ペア:

[(1, 201998875), (5, 40399775), (13, 15538375), (25, 8079955), (65, 3107675), (125, 1615991), (197, 1025375), (325, 621535), (631, 320125), (985, 205075), (1625, 124307), (2561, 78875), (3155, 64025), (4925, 41015), (8203, 24625), (12805, 15775)]