155555890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{523}}^1\times {\mathrm{607}}^1$

素因数の和:1151

約数の個数: 48

約数和(自身を含む): 326875392

約数和(自身を除く): 171319502

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 523, 607, 1046, 1214, 2615, 3035, 3661, 4249, 5230, 6070, 7322, 8498, 18305, 21245, 25627, 29743, 36610, 42490, 51254, 59486, 128135, 148715, 256270, 297430, 317461, 634922, 1587305, 2222227, 3174610, 4444454, 11111135, 15555589, 22222270, 31111178, 77777945, 155555890]

約数ペア:

[(1, 155555890), (2, 77777945), (5, 31111178), (7, 22222270), (10, 15555589), (14, 11111135), (35, 4444454), (49, 3174610), (70, 2222227), (98, 1587305), (245, 634922), (490, 317461), (523, 297430), (607, 256270), (1046, 148715), (1214, 128135), (2615, 59486), (3035, 51254), (3661, 42490), (4249, 36610), (5230, 29743), (6070, 25627), (7322, 21245), (8498, 18305)]