20365425

素因数分解:

$3^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:224

約数の個数: 60

約数和(自身を含む): 38485260

約数和(自身を除く): 18119835

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 89, 113, 135, 225, 267, 339, 405, 445, 565, 675, 801, 1017, 1335, 1695, 2025, 2225, 2403, 2825, 3051, 4005, 5085, 6675, 7209, 8475, 9153, 10057, 12015, 15255, 20025, 25425, 30171, 36045, 45765, 50285, 60075, 76275, 90513, 150855, 180225, 228825, 251425, 271539, 452565, 754275, 814617, 1357695, 2262825, 4073085, 6788475, 20365425]

約数ペア:

[(1, 20365425), (3, 6788475), (5, 4073085), (9, 2262825), (15, 1357695), (25, 814617), (27, 754275), (45, 452565), (75, 271539), (81, 251425), (89, 228825), (113, 180225), (135, 150855), (225, 90513), (267, 76275), (339, 60075), (405, 50285), (445, 45765), (565, 36045), (675, 30171), (801, 25425), (1017, 20025), (1335, 15255), (1695, 12015), (2025, 10057), (2225, 9153), (2403, 8475), (2825, 7209), (3051, 6675), (4005, 5085)]