81084840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:423

約数の個数: 128

約数和(自身を含む): 255467520

約数和(自身を除く): 174382680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 71, 93, 120, 124, 142, 155, 186, 213, 248, 284, 307, 310, 355, 372, 426, 465, 568, 614, 620, 710, 744, 852, 921, 930, 1065, 1228, 1240, 1420, 1535, 1704, 1842, 1860, 2130, 2201, 2456, 2840, 3070, 3684, 3720, 4260, 4402, 4605, 6140, 6603, 7368, 8520, 8804, 9210, 9517, 11005, 12280, 13206, 17608, 18420, 19034, 21797, 22010, 26412, 28551, 33015, 36840, 38068, 43594, 44020, 47585, 52824, 57102, 65391, 66030, 76136, 87188, 88040, 95170, 108985, 114204, 130782, 132060, 142755, 174376, 190340, 217970, 228408, 261564, 264120, 285510, 326955, 380680, 435940, 523128, 571020, 653910, 675707, 871880, 1142040, 1307820, 1351414, 2027121, 2615640, 2702828, 3378535, 4054242, 5405656, 6757070, 8108484, 10135605, 13514140, 16216968, 20271210, 27028280, 40542420, 81084840]

約数ペア:

[(1, 81084840), (2, 40542420), (3, 27028280), (4, 20271210), (5, 16216968), (6, 13514140), (8, 10135605), (10, 8108484), (12, 6757070), (15, 5405656), (20, 4054242), (24, 3378535), (30, 2702828), (31, 2615640), (40, 2027121), (60, 1351414), (62, 1307820), (71, 1142040), (93, 871880), (120, 675707), (124, 653910), (142, 571020), (155, 523128), (186, 435940), (213, 380680), (248, 326955), (284, 285510), (307, 264120), (310, 261564), (355, 228408), (372, 217970), (426, 190340), (465, 174376), (568, 142755), (614, 132060), (620, 130782), (710, 114204), (744, 108985), (852, 95170), (921, 88040), (930, 87188), (1065, 76136), (1228, 66030), (1240, 65391), (1420, 57102), (1535, 52824), (1704, 47585), (1842, 44020), (1860, 43594), (2130, 38068), (2201, 36840), (2456, 33015), (2840, 28551), (3070, 26412), (3684, 22010), (3720, 21797), (4260, 19034), (4402, 18420), (4605, 17608), (6140, 13206), (6603, 12280), (7368, 11005), (8520, 9517), (8804, 9210)]