2912551990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{2069}}^1$

素因数の和:2365

約数の個数: 64

約数和(自身を含む): 5723136000

約数和(自身を除く): 2810584010

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 239, 310, 478, 589, 1178, 1195, 2069, 2390, 2945, 4138, 4541, 5890, 7409, 9082, 10345, 14818, 20690, 22705, 37045, 39311, 45410, 64139, 74090, 78622, 128278, 140771, 196555, 281542, 320695, 393110, 494491, 641390, 703855, 988982, 1218641, 1407710, 2437282, 2472455, 4944910, 6093205, 9395329, 12186410, 15329221, 18790658, 30658442, 46976645, 76646105, 93953290, 153292210, 291255199, 582510398, 1456275995, 2912551990]

約数ペア:

[(1, 2912551990), (2, 1456275995), (5, 582510398), (10, 291255199), (19, 153292210), (31, 93953290), (38, 76646105), (62, 46976645), (95, 30658442), (155, 18790658), (190, 15329221), (239, 12186410), (310, 9395329), (478, 6093205), (589, 4944910), (1178, 2472455), (1195, 2437282), (2069, 1407710), (2390, 1218641), (2945, 988982), (4138, 703855), (4541, 641390), (5890, 494491), (7409, 393110), (9082, 320695), (10345, 281542), (14818, 196555), (20690, 140771), (22705, 128278), (37045, 78622), (39311, 74090), (45410, 64139)]