71644820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{14503}}^1$

素因数の和:14544

約数の個数: 48

約数和(自身を含む): 170567040

約数和(自身を除く): 98922220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 14503, 29006, 58012, 72515, 145030, 188539, 275557, 290060, 377078, 551114, 754156, 942695, 1102228, 1377785, 1885390, 2755570, 3582241, 3770780, 5511140, 7164482, 14328964, 17911205, 35822410, 71644820]

約数ペア:

[(1, 71644820), (2, 35822410), (4, 17911205), (5, 14328964), (10, 7164482), (13, 5511140), (19, 3770780), (20, 3582241), (26, 2755570), (38, 1885390), (52, 1377785), (65, 1102228), (76, 942695), (95, 754156), (130, 551114), (190, 377078), (247, 290060), (260, 275557), (380, 188539), (494, 145030), (988, 72515), (1235, 58012), (2470, 29006), (4940, 14503)]