20653770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:879

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 32534070

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 37, 46, 69, 74, 111, 115, 138, 185, 222, 230, 345, 370, 555, 690, 809, 851, 1110, 1618, 1702, 2427, 2553, 4045, 4255, 4854, 5106, 8090, 8510, 12135, 12765, 18607, 24270, 25530, 29933, 37214, 55821, 59866, 89799, 93035, 111642, 149665, 179598, 186070, 279105, 299330, 448995, 558210, 688459, 897990, 1376918, 2065377, 3442295, 4130754, 6884590, 10326885, 20653770]

約数ペア:

[(1, 20653770), (2, 10326885), (3, 6884590), (5, 4130754), (6, 3442295), (10, 2065377), (15, 1376918), (23, 897990), (30, 688459), (37, 558210), (46, 448995), (69, 299330), (74, 279105), (111, 186070), (115, 179598), (138, 149665), (185, 111642), (222, 93035), (230, 89799), (345, 59866), (370, 55821), (555, 37214), (690, 29933), (809, 25530), (851, 24270), (1110, 18607), (1618, 12765), (1702, 12135), (2427, 8510), (2553, 8090), (4045, 5106), (4255, 4854)]