515631820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{3001}}^1$

素因数の和:3103

約数の個数: 72

約数和(自身を含む): 1207380384

約数和(自身を除く): 691748564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 220, 242, 284, 355, 484, 605, 710, 781, 1210, 1420, 1562, 2420, 3001, 3124, 3905, 6002, 7810, 8591, 12004, 15005, 15620, 17182, 30010, 33011, 34364, 42955, 60020, 66022, 85910, 132044, 165055, 171820, 213071, 330110, 363121, 426142, 660220, 726242, 852284, 1065355, 1452484, 1815605, 2130710, 2343781, 3631210, 4261420, 4687562, 7262420, 9375124, 11718905, 23437810, 25781591, 46875620, 51563182, 103126364, 128907955, 257815910, 515631820]

約数ペア:

[(1, 515631820), (2, 257815910), (4, 128907955), (5, 103126364), (10, 51563182), (11, 46875620), (20, 25781591), (22, 23437810), (44, 11718905), (55, 9375124), (71, 7262420), (110, 4687562), (121, 4261420), (142, 3631210), (220, 2343781), (242, 2130710), (284, 1815605), (355, 1452484), (484, 1065355), (605, 852284), (710, 726242), (781, 660220), (1210, 426142), (1420, 363121), (1562, 330110), (2420, 213071), (3001, 171820), (3124, 165055), (3905, 132044), (6002, 85910), (7810, 66022), (8591, 60020), (12004, 42955), (15005, 34364), (15620, 33011), (17182, 30010)]