80017240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{503}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 186701760

約数和(自身を除く): 106684520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 97, 164, 194, 205, 328, 388, 410, 485, 503, 776, 820, 970, 1006, 1640, 1940, 2012, 2515, 3880, 3977, 4024, 5030, 7954, 10060, 15908, 19885, 20120, 20623, 31816, 39770, 41246, 48791, 79540, 82492, 97582, 103115, 159080, 164984, 195164, 206230, 243955, 390328, 412460, 487910, 824920, 975820, 1951640, 2000431, 4000862, 8001724, 10002155, 16003448, 20004310, 40008620, 80017240]

約数ペア:

[(1, 80017240), (2, 40008620), (4, 20004310), (5, 16003448), (8, 10002155), (10, 8001724), (20, 4000862), (40, 2000431), (41, 1951640), (82, 975820), (97, 824920), (164, 487910), (194, 412460), (205, 390328), (328, 243955), (388, 206230), (410, 195164), (485, 164984), (503, 159080), (776, 103115), (820, 97582), (970, 82492), (1006, 79540), (1640, 48791), (1940, 41246), (2012, 39770), (2515, 31816), (3880, 20623), (3977, 20120), (4024, 19885), (5030, 15908), (7954, 10060)]