164498320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1871}}^1$

素因数の和:2048

約数の個数: 80

約数和(自身を含む): 440114688

約数和(自身を除く): 275616368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 1099, 1256, 1570, 1871, 2198, 2512, 3140, 3742, 4396, 5495, 6280, 7484, 8792, 9355, 10990, 12560, 13097, 14968, 17584, 18710, 21980, 26194, 29936, 37420, 43960, 52388, 65485, 74840, 87920, 104776, 130970, 149680, 209552, 261940, 293747, 523880, 587494, 1047760, 1174988, 1468735, 2056229, 2349976, 2937470, 4112458, 4699952, 5874940, 8224916, 10281145, 11749880, 16449832, 20562290, 23499760, 32899664, 41124580, 82249160, 164498320]

約数ペア:

[(1, 164498320), (2, 82249160), (4, 41124580), (5, 32899664), (7, 23499760), (8, 20562290), (10, 16449832), (14, 11749880), (16, 10281145), (20, 8224916), (28, 5874940), (35, 4699952), (40, 4112458), (56, 2937470), (70, 2349976), (80, 2056229), (112, 1468735), (140, 1174988), (157, 1047760), (280, 587494), (314, 523880), (560, 293747), (628, 261940), (785, 209552), (1099, 149680), (1256, 130970), (1570, 104776), (1871, 87920), (2198, 74840), (2512, 65485), (3140, 52388), (3742, 43960), (4396, 37420), (5495, 29936), (6280, 26194), (7484, 21980), (8792, 18710), (9355, 17584), (10990, 14968), (12560, 13097)]