281122996

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1291}}^1$

素因数の和:1421

約数の個数: 72

約数和(自身を含む): 630981792

約数和(自身を除く): 349858796

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 101, 154, 196, 202, 308, 404, 539, 707, 1078, 1111, 1291, 1414, 2156, 2222, 2582, 2828, 4444, 4949, 5164, 7777, 9037, 9898, 14201, 15554, 18074, 19796, 28402, 31108, 36148, 54439, 56804, 63259, 99407, 108878, 126518, 130391, 198814, 217756, 253036, 260782, 397628, 521564, 695849, 912737, 1391698, 1434301, 1825474, 2783396, 2868602, 3650948, 5737204, 6389159, 10040107, 12778318, 20080214, 25556636, 40160428, 70280749, 140561498, 281122996]

約数ペア:

[(1, 281122996), (2, 140561498), (4, 70280749), (7, 40160428), (11, 25556636), (14, 20080214), (22, 12778318), (28, 10040107), (44, 6389159), (49, 5737204), (77, 3650948), (98, 2868602), (101, 2783396), (154, 1825474), (196, 1434301), (202, 1391698), (308, 912737), (404, 695849), (539, 521564), (707, 397628), (1078, 260782), (1111, 253036), (1291, 217756), (1414, 198814), (2156, 130391), (2222, 126518), (2582, 108878), (2828, 99407), (4444, 63259), (4949, 56804), (5164, 54439), (7777, 36148), (9037, 31108), (9898, 28402), (14201, 19796), (15554, 18074)]