90209680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4457}}^1$

素因数の和:4504

約数の個数: 80

約数和(自身を含む): 238806144

約数和(自身を除く): 148596464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1265, 1840, 2024, 2530, 4048, 4457, 5060, 8914, 10120, 17828, 20240, 22285, 35656, 44570, 49027, 71312, 89140, 98054, 102511, 178280, 196108, 205022, 245135, 356560, 392216, 410044, 490270, 512555, 784432, 820088, 980540, 1025110, 1127621, 1640176, 1961080, 2050220, 2255242, 3922160, 4100440, 4510484, 5638105, 8200880, 9020968, 11276210, 18041936, 22552420, 45104840, 90209680]

約数ペア:

[(1, 90209680), (2, 45104840), (4, 22552420), (5, 18041936), (8, 11276210), (10, 9020968), (11, 8200880), (16, 5638105), (20, 4510484), (22, 4100440), (23, 3922160), (40, 2255242), (44, 2050220), (46, 1961080), (55, 1640176), (80, 1127621), (88, 1025110), (92, 980540), (110, 820088), (115, 784432), (176, 512555), (184, 490270), (220, 410044), (230, 392216), (253, 356560), (368, 245135), (440, 205022), (460, 196108), (506, 178280), (880, 102511), (920, 98054), (1012, 89140), (1265, 71312), (1840, 49027), (2024, 44570), (2530, 35656), (4048, 22285), (4457, 20240), (5060, 17828), (8914, 10120)]