1285333840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{99793}}^1$

素因数の和:99836

約数の個数: 80

約数和(自身を含む): 3563843328

約数和(自身を除く): 2278509488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 99793, 199586, 399172, 498965, 698551, 798344, 997930, 1397102, 1596688, 1995860, 2295239, 2794204, 3492755, 3991720, 4590478, 5588408, 6985510, 7983440, 9180956, 11176816, 11476195, 13971020, 16066673, 18361912, 22952390, 27942040, 32133346, 36723824, 45904780, 55884080, 64266692, 80333365, 91809560, 128533384, 160666730, 183619120, 257066768, 321333460, 642666920, 1285333840]

約数ペア:

[(1, 1285333840), (2, 642666920), (4, 321333460), (5, 257066768), (7, 183619120), (8, 160666730), (10, 128533384), (14, 91809560), (16, 80333365), (20, 64266692), (23, 55884080), (28, 45904780), (35, 36723824), (40, 32133346), (46, 27942040), (56, 22952390), (70, 18361912), (80, 16066673), (92, 13971020), (112, 11476195), (115, 11176816), (140, 9180956), (161, 7983440), (184, 6985510), (230, 5588408), (280, 4590478), (322, 3991720), (368, 3492755), (460, 2794204), (560, 2295239), (644, 1995860), (805, 1596688), (920, 1397102), (1288, 997930), (1610, 798344), (1840, 698551), (2576, 498965), (3220, 399172), (6440, 199586), (12880, 99793)]