311115280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2633}}^1$

素因数の和:2864

約数の個数: 80

約数和(自身を含む): 830911104

約数和(自身を除く): 519795824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 211, 280, 422, 560, 844, 1055, 1477, 1688, 2110, 2633, 2954, 3376, 4220, 5266, 5908, 7385, 8440, 10532, 11816, 13165, 14770, 16880, 18431, 21064, 23632, 26330, 29540, 36862, 42128, 52660, 59080, 73724, 92155, 105320, 118160, 147448, 184310, 210640, 294896, 368620, 555563, 737240, 1111126, 1474480, 2222252, 2777815, 3888941, 4444504, 5555630, 7777882, 8889008, 11111260, 15555764, 19444705, 22222520, 31111528, 38889410, 44445040, 62223056, 77778820, 155557640, 311115280]

約数ペア:

[(1, 311115280), (2, 155557640), (4, 77778820), (5, 62223056), (7, 44445040), (8, 38889410), (10, 31111528), (14, 22222520), (16, 19444705), (20, 15555764), (28, 11111260), (35, 8889008), (40, 7777882), (56, 5555630), (70, 4444504), (80, 3888941), (112, 2777815), (140, 2222252), (211, 1474480), (280, 1111126), (422, 737240), (560, 555563), (844, 368620), (1055, 294896), (1477, 210640), (1688, 184310), (2110, 147448), (2633, 118160), (2954, 105320), (3376, 92155), (4220, 73724), (5266, 59080), (5908, 52660), (7385, 42128), (8440, 36862), (10532, 29540), (11816, 26330), (13165, 23632), (14770, 21064), (16880, 18431)]