2020123455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1\times {\mathrm{823}}^1$

素因数の和:1176

約数の個数: 64

約数和(自身を含む): 3752060928

約数和(自身を除く): 1731937473

約数列:

[1, 3, 5, 7, 15, 21, 35, 97, 105, 241, 291, 485, 679, 723, 823, 1205, 1455, 1687, 2037, 2469, 3395, 3615, 4115, 5061, 5761, 8435, 10185, 12345, 17283, 23377, 25305, 28805, 70131, 79831, 86415, 116885, 163639, 198343, 239493, 350655, 399155, 490917, 558817, 595029, 818195, 991715, 1197465, 1388401, 1676451, 2454585, 2794085, 2975145, 4165203, 6942005, 8382255, 19239271, 20826015, 57717813, 96196355, 134674897, 288589065, 404024691, 673374485, 2020123455]

約数ペア:

[(1, 2020123455), (3, 673374485), (5, 404024691), (7, 288589065), (15, 134674897), (21, 96196355), (35, 57717813), (97, 20826015), (105, 19239271), (241, 8382255), (291, 6942005), (485, 4165203), (679, 2975145), (723, 2794085), (823, 2454585), (1205, 1676451), (1455, 1388401), (1687, 1197465), (2037, 991715), (2469, 818195), (3395, 595029), (3615, 558817), (4115, 490917), (5061, 399155), (5761, 350655), (8435, 239493), (10185, 198343), (12345, 163639), (17283, 116885), (23377, 86415), (25305, 79831), (28805, 70131)]