20880050

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 42259200

約数和(自身を除く): 21379150

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 475, 589, 709, 775, 950, 1178, 1418, 1550, 2945, 3545, 5890, 7090, 13471, 14725, 17725, 21979, 26942, 29450, 35450, 43958, 67355, 109895, 134710, 219790, 336775, 417601, 549475, 673550, 835202, 1098950, 2088005, 4176010, 10440025, 20880050]

約数ペア:

[(1, 20880050), (2, 10440025), (5, 4176010), (10, 2088005), (19, 1098950), (25, 835202), (31, 673550), (38, 549475), (50, 417601), (62, 336775), (95, 219790), (155, 134710), (190, 109895), (310, 67355), (475, 43958), (589, 35450), (709, 29450), (775, 26942), (950, 21979), (1178, 17725), (1418, 14725), (1550, 13471), (2945, 7090), (3545, 5890)]