2620208120

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{419}}^1\times {\mathrm{1231}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 5960908800

約数和(自身を除く): 3340700680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 419, 508, 635, 838, 1016, 1231, 1270, 1676, 2095, 2462, 2540, 3352, 4190, 4924, 5080, 6155, 8380, 9848, 12310, 16760, 24620, 49240, 53213, 106426, 156337, 212852, 266065, 312674, 425704, 515789, 532130, 625348, 781685, 1031578, 1064260, 1250696, 1563370, 2063156, 2128520, 2578945, 3126740, 4126312, 5157890, 6253480, 10315780, 20631560, 65505203, 131010406, 262020812, 327526015, 524041624, 655052030, 1310104060, 2620208120]

約数ペア:

[(1, 2620208120), (2, 1310104060), (4, 655052030), (5, 524041624), (8, 327526015), (10, 262020812), (20, 131010406), (40, 65505203), (127, 20631560), (254, 10315780), (419, 6253480), (508, 5157890), (635, 4126312), (838, 3126740), (1016, 2578945), (1231, 2128520), (1270, 2063156), (1676, 1563370), (2095, 1250696), (2462, 1064260), (2540, 1031578), (3352, 781685), (4190, 625348), (4924, 532130), (5080, 515789), (6155, 425704), (8380, 312674), (9848, 266065), (12310, 212852), (16760, 156337), (24620, 106426), (49240, 53213)]