20210970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1787}}^1$

素因数の和:1839

約数の個数: 64

約数和(自身を含む): 54069120

約数和(自身を除く): 33858150

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 29, 30, 39, 58, 65, 78, 87, 130, 145, 174, 195, 290, 377, 390, 435, 754, 870, 1131, 1787, 1885, 2262, 3574, 3770, 5361, 5655, 8935, 10722, 11310, 17870, 23231, 26805, 46462, 51823, 53610, 69693, 103646, 116155, 139386, 155469, 232310, 259115, 310938, 348465, 518230, 673699, 696930, 777345, 1347398, 1554690, 2021097, 3368495, 4042194, 6736990, 10105485, 20210970]

約数ペア:

[(1, 20210970), (2, 10105485), (3, 6736990), (5, 4042194), (6, 3368495), (10, 2021097), (13, 1554690), (15, 1347398), (26, 777345), (29, 696930), (30, 673699), (39, 518230), (58, 348465), (65, 310938), (78, 259115), (87, 232310), (130, 155469), (145, 139386), (174, 116155), (195, 103646), (290, 69693), (377, 53610), (390, 51823), (435, 46462), (754, 26805), (870, 23231), (1131, 17870), (1787, 11310), (1885, 10722), (2262, 8935), (3574, 5655), (3770, 5361)]