217638910

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:673

約数の個数: 64

約数和(自身を含む): 428820480

約数和(自身を除く): 211181570

約数列:

[1, 2, 5, 10, 29, 31, 43, 58, 62, 86, 145, 155, 215, 290, 310, 430, 563, 899, 1126, 1247, 1333, 1798, 2494, 2666, 2815, 4495, 5630, 6235, 6665, 8990, 12470, 13330, 16327, 17453, 24209, 32654, 34906, 38657, 48418, 77314, 81635, 87265, 121045, 163270, 174530, 193285, 242090, 386570, 506137, 702061, 750479, 1012274, 1404122, 1500958, 2530685, 3510305, 3752395, 5061370, 7020610, 7504790, 21763891, 43527782, 108819455, 217638910]

約数ペア:

[(1, 217638910), (2, 108819455), (5, 43527782), (10, 21763891), (29, 7504790), (31, 7020610), (43, 5061370), (58, 3752395), (62, 3510305), (86, 2530685), (145, 1500958), (155, 1404122), (215, 1012274), (290, 750479), (310, 702061), (430, 506137), (563, 386570), (899, 242090), (1126, 193285), (1247, 174530), (1333, 163270), (1798, 121045), (2494, 87265), (2666, 81635), (2815, 77314), (4495, 48418), (5630, 38657), (6235, 34906), (6665, 32654), (8990, 24209), (12470, 17453), (13330, 16327)]