172698520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139273}}^1$

素因数の和:139315

約数の個数: 32

約数和(自身を含む): 401109120

約数和(自身を除く): 228410600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 139273, 278546, 557092, 696365, 1114184, 1392730, 2785460, 4317463, 5570920, 8634926, 17269852, 21587315, 34539704, 43174630, 86349260, 172698520]

約数ペア:

[(1, 172698520), (2, 86349260), (4, 43174630), (5, 34539704), (8, 21587315), (10, 17269852), (20, 8634926), (31, 5570920), (40, 4317463), (62, 2785460), (124, 1392730), (155, 1114184), (248, 696365), (310, 557092), (620, 278546), (1240, 139273)]