72787220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{887}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 167384448

約数和(自身を除く): 94597228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 373, 746, 887, 1492, 1774, 1865, 3548, 3730, 4103, 4435, 7460, 8206, 8870, 9757, 16412, 17740, 19514, 20515, 39028, 41030, 48785, 82060, 97570, 195140, 330851, 661702, 1323404, 1654255, 3308510, 3639361, 6617020, 7278722, 14557444, 18196805, 36393610, 72787220]

約数ペア:

[(1, 72787220), (2, 36393610), (4, 18196805), (5, 14557444), (10, 7278722), (11, 6617020), (20, 3639361), (22, 3308510), (44, 1654255), (55, 1323404), (110, 661702), (220, 330851), (373, 195140), (746, 97570), (887, 82060), (1492, 48785), (1774, 41030), (1865, 39028), (3548, 20515), (3730, 19514), (4103, 17740), (4435, 16412), (7460, 9757), (8206, 8870)]