821817830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1039}}^1$

素因数の和:1269

約数の個数: 64

約数和(自身を含む): 1635379200

約数和(自身を除く): 813561370

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 181, 190, 230, 362, 437, 874, 905, 1039, 1810, 2078, 2185, 3439, 4163, 4370, 5195, 6878, 8326, 10390, 17195, 19741, 20815, 23897, 34390, 39482, 41630, 47794, 79097, 98705, 119485, 158194, 188059, 197410, 238970, 376118, 395485, 454043, 790970, 908086, 940295, 1880590, 2270215, 3573121, 4325357, 4540430, 7146242, 8650714, 17865605, 21626785, 35731210, 43253570, 82181783, 164363566, 410908915, 821817830]

約数ペア:

[(1, 821817830), (2, 410908915), (5, 164363566), (10, 82181783), (19, 43253570), (23, 35731210), (38, 21626785), (46, 17865605), (95, 8650714), (115, 7146242), (181, 4540430), (190, 4325357), (230, 3573121), (362, 2270215), (437, 1880590), (874, 940295), (905, 908086), (1039, 790970), (1810, 454043), (2078, 395485), (2185, 376118), (3439, 238970), (4163, 197410), (4370, 188059), (5195, 158194), (6878, 119485), (8326, 98705), (10390, 79097), (17195, 47794), (19741, 41630), (20815, 39482), (23897, 34390)]