16040025

素因数分解:

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

素因数の和:200

約数の個数: 45

約数和(自身を含む): 30049261

約数和(自身を除く): 14009236

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 89, 135, 225, 267, 405, 445, 675, 801, 1335, 2025, 2225, 2403, 4005, 6675, 7209, 7921, 12015, 20025, 23763, 36045, 39605, 60075, 71289, 118815, 180225, 198025, 213867, 356445, 594075, 641601, 1069335, 1782225, 3208005, 5346675, 16040025]

約数ペア:

[(1, 16040025), (3, 5346675), (5, 3208005), (9, 1782225), (15, 1069335), (25, 641601), (27, 594075), (45, 356445), (75, 213867), (81, 198025), (89, 180225), (135, 118815), (225, 71289), (267, 60075), (405, 39605), (445, 36045), (675, 23763), (801, 20025), (1335, 12015), (2025, 7921), (2225, 7209), (2403, 6675)]