8154580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 20425608

約数和(自身を除く): 12271028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 157, 196, 212, 245, 265, 314, 371, 490, 530, 628, 742, 785, 980, 1060, 1099, 1484, 1570, 1855, 2198, 2597, 3140, 3710, 4396, 5194, 5495, 7420, 7693, 8321, 10388, 10990, 12985, 15386, 16642, 21980, 25970, 30772, 33284, 38465, 41605, 51940, 58247, 76930, 83210, 116494, 153860, 166420, 232988, 291235, 407729, 582470, 815458, 1164940, 1630916, 2038645, 4077290, 8154580]

約数ペア:

[(1, 8154580), (2, 4077290), (4, 2038645), (5, 1630916), (7, 1164940), (10, 815458), (14, 582470), (20, 407729), (28, 291235), (35, 232988), (49, 166420), (53, 153860), (70, 116494), (98, 83210), (106, 76930), (140, 58247), (157, 51940), (196, 41605), (212, 38465), (245, 33284), (265, 30772), (314, 25970), (371, 21980), (490, 16642), (530, 15386), (628, 12985), (742, 10990), (785, 10388), (980, 8321), (1060, 7693), (1099, 7420), (1484, 5495), (1570, 5194), (1855, 4396), (2198, 3710), (2597, 3140)]