16664655

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 32256000

約数和(自身を除く): 15591345

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 49, 79, 105, 123, 147, 205, 237, 245, 287, 343, 395, 553, 615, 735, 861, 1029, 1185, 1435, 1659, 1715, 2009, 2765, 3239, 3871, 4305, 5145, 6027, 8295, 9717, 10045, 11613, 14063, 16195, 19355, 22673, 27097, 30135, 42189, 48585, 58065, 68019, 70315, 81291, 113365, 135485, 158711, 210945, 340095, 406455, 476133, 793555, 1110977, 2380665, 3332931, 5554885, 16664655]

約数ペア:

[(1, 16664655), (3, 5554885), (5, 3332931), (7, 2380665), (15, 1110977), (21, 793555), (35, 476133), (41, 406455), (49, 340095), (79, 210945), (105, 158711), (123, 135485), (147, 113365), (205, 81291), (237, 70315), (245, 68019), (287, 58065), (343, 48585), (395, 42189), (553, 30135), (615, 27097), (735, 22673), (861, 19355), (1029, 16195), (1185, 14063), (1435, 11613), (1659, 10045), (1715, 9717), (2009, 8295), (2765, 6027), (3239, 5145), (3871, 4305)]