71481520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2801}}^1$

素因数の和:2854

約数の個数: 80

約数和(自身を含む): 187621920

約数和(自身を除く): 116140400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1595, 2320, 2552, 2801, 3190, 5104, 5602, 6380, 11204, 12760, 14005, 22408, 25520, 28010, 30811, 44816, 56020, 61622, 81229, 112040, 123244, 154055, 162458, 224080, 246488, 308110, 324916, 406145, 492976, 616220, 649832, 812290, 893519, 1232440, 1299664, 1624580, 1787038, 2464880, 3249160, 3574076, 4467595, 6498320, 7148152, 8935190, 14296304, 17870380, 35740760, 71481520]

約数ペア:

[(1, 71481520), (2, 35740760), (4, 17870380), (5, 14296304), (8, 8935190), (10, 7148152), (11, 6498320), (16, 4467595), (20, 3574076), (22, 3249160), (29, 2464880), (40, 1787038), (44, 1624580), (55, 1299664), (58, 1232440), (80, 893519), (88, 812290), (110, 649832), (116, 616220), (145, 492976), (176, 406145), (220, 324916), (232, 308110), (290, 246488), (319, 224080), (440, 162458), (464, 154055), (580, 123244), (638, 112040), (880, 81229), (1160, 61622), (1276, 56020), (1595, 44816), (2320, 30811), (2552, 28010), (2801, 25520), (3190, 22408), (5104, 14005), (5602, 12760), (6380, 11204)]