80961965

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 118195200

約数和(自身を除く): 37233235

約数列:

[1, 5, 7, 35, 47, 49, 79, 89, 235, 245, 329, 395, 445, 553, 623, 1645, 2303, 2765, 3115, 3713, 3871, 4183, 4361, 7031, 11515, 18565, 19355, 20915, 21805, 25991, 29281, 35155, 49217, 129955, 146405, 181937, 204967, 246085, 330457, 344519, 909685, 1024835, 1652285, 1722595, 2313199, 11565995, 16192393, 80961965]

約数ペア:

[(1, 80961965), (5, 16192393), (7, 11565995), (35, 2313199), (47, 1722595), (49, 1652285), (79, 1024835), (89, 909685), (235, 344519), (245, 330457), (329, 246085), (395, 204967), (445, 181937), (553, 146405), (623, 129955), (1645, 49217), (2303, 35155), (2765, 29281), (3115, 25991), (3713, 21805), (3871, 20915), (4183, 19355), (4361, 18565), (7031, 11515)]