38387925

素因数分解:

$3^5\times 5^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 73120320

約数和(自身を除く): 34732395

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 89, 135, 213, 225, 243, 267, 355, 405, 445, 639, 675, 801, 1065, 1215, 1335, 1775, 1917, 2025, 2225, 2403, 3195, 4005, 5325, 5751, 6075, 6319, 6675, 7209, 9585, 12015, 15975, 17253, 18957, 20025, 21627, 28755, 31595, 36045, 47925, 56871, 60075, 86265, 94785, 108135, 143775, 157975, 170613, 180225, 284355, 431325, 473925, 511839, 540675, 853065, 1421775, 1535517, 2559195, 4265325, 7677585, 12795975, 38387925]

約数ペア:

[(1, 38387925), (3, 12795975), (5, 7677585), (9, 4265325), (15, 2559195), (25, 1535517), (27, 1421775), (45, 853065), (71, 540675), (75, 511839), (81, 473925), (89, 431325), (135, 284355), (213, 180225), (225, 170613), (243, 157975), (267, 143775), (355, 108135), (405, 94785), (445, 86265), (639, 60075), (675, 56871), (801, 47925), (1065, 36045), (1215, 31595), (1335, 28755), (1775, 21627), (1917, 20025), (2025, 18957), (2225, 17253), (2403, 15975), (3195, 12015), (4005, 9585), (5325, 7209), (5751, 6675), (6075, 6319)]