18955020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{45131}}^1$

素因数の和:45150

約数の個数: 48

約数和(自身を含む): 60657408

約数和(自身を除く): 41702388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 45131, 90262, 135393, 180524, 225655, 270786, 315917, 451310, 541572, 631834, 676965, 902620, 947751, 1263668, 1353930, 1579585, 1895502, 2707860, 3159170, 3791004, 4738755, 6318340, 9477510, 18955020]

約数ペア:

[(1, 18955020), (2, 9477510), (3, 6318340), (4, 4738755), (5, 3791004), (6, 3159170), (7, 2707860), (10, 1895502), (12, 1579585), (14, 1353930), (15, 1263668), (20, 947751), (21, 902620), (28, 676965), (30, 631834), (35, 541572), (42, 451310), (60, 315917), (70, 270786), (84, 225655), (105, 180524), (140, 135393), (210, 90262), (420, 45131)]