163921075

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:532

約数の個数: 36

約数和(自身を含む): 220251528

約数和(自身を除く): 56330453

約数列:

[1, 5, 19, 25, 41, 95, 205, 361, 443, 475, 779, 1025, 1805, 2215, 3895, 8417, 9025, 11075, 14801, 18163, 19475, 42085, 74005, 90815, 159923, 210425, 345097, 370025, 454075, 799615, 1725485, 3998075, 6556843, 8627425, 32784215, 163921075]

約数ペア:

[(1, 163921075), (5, 32784215), (19, 8627425), (25, 6556843), (41, 3998075), (95, 1725485), (205, 799615), (361, 454075), (443, 370025), (475, 345097), (779, 210425), (1025, 159923), (1805, 90815), (2215, 74005), (3895, 42085), (8417, 19475), (9025, 18163), (11075, 14801)]