81536940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{452983}}^1$

素因数の和:452998

約数の個数: 36

約数和(自身を含む): 247329264

約数和(自身を除く): 165792324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 452983, 905966, 1358949, 1811932, 2264915, 2717898, 4076847, 4529830, 5435796, 6794745, 8153694, 9059660, 13589490, 16307388, 20384235, 27178980, 40768470, 81536940]

約数ペア:

[(1, 81536940), (2, 40768470), (3, 27178980), (4, 20384235), (5, 16307388), (6, 13589490), (9, 9059660), (10, 8153694), (12, 6794745), (15, 5435796), (18, 4529830), (20, 4076847), (30, 2717898), (36, 2264915), (45, 1811932), (60, 1358949), (90, 905966), (180, 452983)]