25509590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 25915690

約数列:

[1, 2, 5, 10, 19, 31, 38, 61, 62, 71, 95, 122, 142, 155, 190, 305, 310, 355, 589, 610, 710, 1159, 1178, 1349, 1891, 2201, 2318, 2698, 2945, 3782, 4331, 4402, 5795, 5890, 6745, 8662, 9455, 11005, 11590, 13490, 18910, 21655, 22010, 35929, 41819, 43310, 71858, 82289, 83638, 134261, 164578, 179645, 209095, 268522, 359290, 411445, 418190, 671305, 822890, 1342610, 2550959, 5101918, 12754795, 25509590]

約数ペア:

[(1, 25509590), (2, 12754795), (5, 5101918), (10, 2550959), (19, 1342610), (31, 822890), (38, 671305), (61, 418190), (62, 411445), (71, 359290), (95, 268522), (122, 209095), (142, 179645), (155, 164578), (190, 134261), (305, 83638), (310, 82289), (355, 71858), (589, 43310), (610, 41819), (710, 35929), (1159, 22010), (1178, 21655), (1349, 18910), (1891, 13490), (2201, 11590), (2318, 11005), (2698, 9455), (2945, 8662), (3782, 6745), (4331, 5890), (4402, 5795)]