647515180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{16493}}^1$

素因数の和:16666

約数の個数: 48

約数和(自身を含む): 1474167744

約数和(自身を除く): 826652564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 151, 260, 302, 604, 755, 1510, 1963, 3020, 3926, 7852, 9815, 16493, 19630, 32986, 39260, 65972, 82465, 164930, 214409, 329860, 428818, 857636, 1072045, 2144090, 2490443, 4288180, 4980886, 9961772, 12452215, 24904430, 32375759, 49808860, 64751518, 129503036, 161878795, 323757590, 647515180]

約数ペア:

[(1, 647515180), (2, 323757590), (4, 161878795), (5, 129503036), (10, 64751518), (13, 49808860), (20, 32375759), (26, 24904430), (52, 12452215), (65, 9961772), (130, 4980886), (151, 4288180), (260, 2490443), (302, 2144090), (604, 1072045), (755, 857636), (1510, 428818), (1963, 329860), (3020, 214409), (3926, 164930), (7852, 82465), (9815, 65972), (16493, 39260), (19630, 32986)]