77996925

素因数分解:

$3^5\times 5^2\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 149219616

約数和(自身を除く): 71222691

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 81, 111, 135, 185, 225, 243, 333, 347, 405, 555, 675, 925, 999, 1041, 1215, 1665, 1735, 2025, 2775, 2997, 3123, 4995, 5205, 6075, 8325, 8675, 8991, 9369, 12839, 14985, 15615, 24975, 26025, 28107, 38517, 44955, 46845, 64195, 74925, 78075, 84321, 115551, 140535, 192585, 224775, 234225, 320975, 346653, 421605, 577755, 702675, 962925, 1039959, 1733265, 2108025, 2888775, 3119877, 5199795, 8666325, 15599385, 25998975, 77996925]

約数ペア:

[(1, 77996925), (3, 25998975), (5, 15599385), (9, 8666325), (15, 5199795), (25, 3119877), (27, 2888775), (37, 2108025), (45, 1733265), (75, 1039959), (81, 962925), (111, 702675), (135, 577755), (185, 421605), (225, 346653), (243, 320975), (333, 234225), (347, 224775), (405, 192585), (555, 140535), (675, 115551), (925, 84321), (999, 78075), (1041, 74925), (1215, 64195), (1665, 46845), (1735, 44955), (2025, 38517), (2775, 28107), (2997, 26025), (3123, 24975), (4995, 15615), (5205, 14985), (6075, 12839), (8325, 9369), (8675, 8991)]