80664980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{983}}^1$

素因数の和:1376

約数の個数: 48

約数和(自身を含む): 185480064

約数和(自身を除く): 104815084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 373, 746, 983, 1492, 1865, 1966, 3730, 3932, 4103, 4915, 7460, 8206, 9830, 10813, 16412, 19660, 20515, 21626, 41030, 43252, 54065, 82060, 108130, 216260, 366659, 733318, 1466636, 1833295, 3666590, 4033249, 7333180, 8066498, 16132996, 20166245, 40332490, 80664980]

約数ペア:

[(1, 80664980), (2, 40332490), (4, 20166245), (5, 16132996), (10, 8066498), (11, 7333180), (20, 4033249), (22, 3666590), (44, 1833295), (55, 1466636), (110, 733318), (220, 366659), (373, 216260), (746, 108130), (983, 82060), (1492, 54065), (1865, 43252), (1966, 41030), (3730, 21626), (3932, 20515), (4103, 19660), (4915, 16412), (7460, 10813), (8206, 9830)]