2909660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 72

約数和(自身を含む): 7168896

約数和(自身を除く): 4259236

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 260, 310, 361, 380, 403, 494, 589, 620, 722, 806, 988, 1178, 1235, 1444, 1612, 1805, 2015, 2356, 2470, 2945, 3610, 4030, 4693, 4940, 5890, 7220, 7657, 8060, 9386, 11191, 11780, 15314, 18772, 22382, 23465, 30628, 38285, 44764, 46930, 55955, 76570, 93860, 111910, 145483, 153140, 223820, 290966, 581932, 727415, 1454830, 2909660]

約数ペア:

[(1, 2909660), (2, 1454830), (4, 727415), (5, 581932), (10, 290966), (13, 223820), (19, 153140), (20, 145483), (26, 111910), (31, 93860), (38, 76570), (52, 55955), (62, 46930), (65, 44764), (76, 38285), (95, 30628), (124, 23465), (130, 22382), (155, 18772), (190, 15314), (247, 11780), (260, 11191), (310, 9386), (361, 8060), (380, 7657), (403, 7220), (494, 5890), (589, 4940), (620, 4693), (722, 4030), (806, 3610), (988, 2945), (1178, 2470), (1235, 2356), (1444, 2015), (1612, 1805)]