201992990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:609

約数の個数: 64

約数和(自身を含む): 400550400

約数和(自身を除く): 198557410

約数列:

[1, 2, 5, 10, 19, 37, 38, 59, 74, 95, 118, 185, 190, 295, 370, 487, 590, 703, 974, 1121, 1406, 2183, 2242, 2435, 3515, 4366, 4870, 5605, 7030, 9253, 10915, 11210, 18019, 18506, 21830, 28733, 36038, 41477, 46265, 57466, 82954, 90095, 92530, 143665, 180190, 207385, 287330, 342361, 414770, 545927, 684722, 1063121, 1091854, 1711805, 2126242, 2729635, 3423610, 5315605, 5459270, 10631210, 20199299, 40398598, 100996495, 201992990]

約数ペア:

[(1, 201992990), (2, 100996495), (5, 40398598), (10, 20199299), (19, 10631210), (37, 5459270), (38, 5315605), (59, 3423610), (74, 2729635), (95, 2126242), (118, 1711805), (185, 1091854), (190, 1063121), (295, 684722), (370, 545927), (487, 414770), (590, 342361), (703, 287330), (974, 207385), (1121, 180190), (1406, 143665), (2183, 92530), (2242, 90095), (2435, 82954), (3515, 57466), (4366, 46265), (4870, 41477), (5605, 36038), (7030, 28733), (9253, 21830), (10915, 18506), (11210, 18019)]