20514680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26993}}^1$

素因数の和:27023

約数の個数: 32

約数和(自身を含む): 48589200

約数和(自身を除く): 28074520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26993, 53986, 107972, 134965, 215944, 269930, 512867, 539860, 1025734, 1079720, 2051468, 2564335, 4102936, 5128670, 10257340, 20514680]

約数ペア:

[(1, 20514680), (2, 10257340), (4, 5128670), (5, 4102936), (8, 2564335), (10, 2051468), (19, 1079720), (20, 1025734), (38, 539860), (40, 512867), (76, 269930), (95, 215944), (152, 134965), (190, 107972), (380, 53986), (760, 26993)]