54782890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 109486080

約数和(自身を除く): 54703190

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 71, 95, 131, 142, 155, 190, 262, 310, 355, 589, 655, 710, 1178, 1310, 1349, 2201, 2489, 2698, 2945, 4061, 4402, 4978, 5890, 6745, 8122, 9301, 11005, 12445, 13490, 18602, 20305, 22010, 24890, 40610, 41819, 46505, 77159, 83638, 93010, 154318, 176719, 209095, 288331, 353438, 385795, 418190, 576662, 771590, 883595, 1441655, 1767190, 2883310, 5478289, 10956578, 27391445, 54782890]

約数ペア:

[(1, 54782890), (2, 27391445), (5, 10956578), (10, 5478289), (19, 2883310), (31, 1767190), (38, 1441655), (62, 883595), (71, 771590), (95, 576662), (131, 418190), (142, 385795), (155, 353438), (190, 288331), (262, 209095), (310, 176719), (355, 154318), (589, 93010), (655, 83638), (710, 77159), (1178, 46505), (1310, 41819), (1349, 40610), (2201, 24890), (2489, 22010), (2698, 20305), (2945, 18602), (4061, 13490), (4402, 12445), (4978, 11005), (5890, 9301), (6745, 8122)]