77816680

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4643}}^1$

素因数の和:5073

約数の個数: 32

約数和(自身を含む): 175543200

約数和(自身を除く): 97726520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 4643, 8380, 9286, 16760, 18572, 23215, 37144, 46430, 92860, 185720, 1945417, 3890834, 7781668, 9727085, 15563336, 19454170, 38908340, 77816680]

約数ペア:

[(1, 77816680), (2, 38908340), (4, 19454170), (5, 15563336), (8, 9727085), (10, 7781668), (20, 3890834), (40, 1945417), (419, 185720), (838, 92860), (1676, 46430), (2095, 37144), (3352, 23215), (4190, 18572), (4643, 16760), (8380, 9286)]