407440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{463}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 1035648

約数和(自身を除く): 628208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 463, 880, 926, 1852, 2315, 3704, 4630, 5093, 7408, 9260, 10186, 18520, 20372, 25465, 37040, 40744, 50930, 81488, 101860, 203720, 407440]

約数ペア:

[(1, 407440), (2, 203720), (4, 101860), (5, 81488), (8, 50930), (10, 40744), (11, 37040), (16, 25465), (20, 20372), (22, 18520), (40, 10186), (44, 9260), (55, 7408), (80, 5093), (88, 4630), (110, 3704), (176, 2315), (220, 1852), (440, 926), (463, 880)]