65604920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 153014400

約数和(自身を除く): 87409480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 109, 164, 205, 218, 328, 367, 410, 436, 545, 734, 820, 872, 1090, 1468, 1640, 1835, 2180, 2936, 3670, 4360, 4469, 7340, 8938, 14680, 15047, 17876, 22345, 30094, 35752, 40003, 44690, 60188, 75235, 80006, 89380, 120376, 150470, 160012, 178760, 200015, 300940, 320024, 400030, 601880, 800060, 1600120, 1640123, 3280246, 6560492, 8200615, 13120984, 16401230, 32802460, 65604920]

約数ペア:

[(1, 65604920), (2, 32802460), (4, 16401230), (5, 13120984), (8, 8200615), (10, 6560492), (20, 3280246), (40, 1640123), (41, 1600120), (82, 800060), (109, 601880), (164, 400030), (205, 320024), (218, 300940), (328, 200015), (367, 178760), (410, 160012), (436, 150470), (545, 120376), (734, 89380), (820, 80006), (872, 75235), (1090, 60188), (1468, 44690), (1640, 40003), (1835, 35752), (2180, 30094), (2936, 22345), (3670, 17876), (4360, 15047), (4469, 14680), (7340, 8938)]