81907270

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{193}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 157223808

約数和(自身を除く): 75316538

約数列:

[1, 2, 5, 10, 31, 37, 62, 74, 155, 185, 193, 310, 370, 386, 965, 1147, 1369, 1930, 2294, 2738, 5735, 5983, 6845, 7141, 11470, 11966, 13690, 14282, 29915, 35705, 42439, 59830, 71410, 84878, 212195, 221371, 264217, 424390, 442742, 528434, 1106855, 1321085, 2213710, 2642170, 8190727, 16381454, 40953635, 81907270]

約数ペア:

[(1, 81907270), (2, 40953635), (5, 16381454), (10, 8190727), (31, 2642170), (37, 2213710), (62, 1321085), (74, 1106855), (155, 528434), (185, 442742), (193, 424390), (310, 264217), (370, 221371), (386, 212195), (965, 84878), (1147, 71410), (1369, 59830), (1930, 42439), (2294, 35705), (2738, 29915), (5735, 14282), (5983, 13690), (6845, 11966), (7141, 11470)]