20557140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2269}}^1$

素因数の和:2432

約数の個数: 48

約数和(自身を含む): 57966720

約数和(自身を除く): 37409580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2269, 3020, 4530, 4538, 6807, 9060, 9076, 11345, 13614, 22690, 27228, 34035, 45380, 68070, 136140, 342619, 685238, 1027857, 1370476, 1713095, 2055714, 3426190, 4111428, 5139285, 6852380, 10278570, 20557140]

約数ペア:

[(1, 20557140), (2, 10278570), (3, 6852380), (4, 5139285), (5, 4111428), (6, 3426190), (10, 2055714), (12, 1713095), (15, 1370476), (20, 1027857), (30, 685238), (60, 342619), (151, 136140), (302, 68070), (453, 45380), (604, 34035), (755, 27228), (906, 22690), (1510, 13614), (1812, 11345), (2265, 9076), (2269, 9060), (3020, 6807), (4530, 4538)]