64200280

素因数分解:

$2^3\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1913}}^1$

素因数の和:2763

約数の個数: 32

約数和(自身を含む): 144698400

約数和(自身を除く): 80498120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 839, 1678, 1913, 3356, 3826, 4195, 6712, 7652, 8390, 9565, 15304, 16780, 19130, 33560, 38260, 76520, 1605007, 3210014, 6420028, 8025035, 12840056, 16050070, 32100140, 64200280]

約数ペア:

[(1, 64200280), (2, 32100140), (4, 16050070), (5, 12840056), (8, 8025035), (10, 6420028), (20, 3210014), (40, 1605007), (839, 76520), (1678, 38260), (1913, 33560), (3356, 19130), (3826, 16780), (4195, 15304), (6712, 9565), (7652, 8390)]