65305040

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2659}}^1$

素因数の和:2979

約数の個数: 40

約数和(自身を含む): 152386080

約数和(自身を除く): 87081040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 1228, 1535, 2456, 2659, 3070, 4912, 5318, 6140, 10636, 12280, 13295, 21272, 24560, 26590, 42544, 53180, 106360, 212720, 816313, 1632626, 3265252, 4081565, 6530504, 8163130, 13061008, 16326260, 32652520, 65305040]

約数ペア:

[(1, 65305040), (2, 32652520), (4, 16326260), (5, 13061008), (8, 8163130), (10, 6530504), (16, 4081565), (20, 3265252), (40, 1632626), (80, 816313), (307, 212720), (614, 106360), (1228, 53180), (1535, 42544), (2456, 26590), (2659, 24560), (3070, 21272), (4912, 13295), (5318, 12280), (6140, 10636)]