18993100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:695

約数の個数: 72

約数和(自身を含む): 48274688

約数和(自身を除く): 29281588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 631, 700, 860, 1075, 1204, 1262, 1505, 2150, 2524, 3010, 3155, 4300, 4417, 6020, 6310, 7525, 8834, 12620, 15050, 15775, 17668, 22085, 27133, 30100, 31550, 44170, 54266, 63100, 88340, 108532, 110425, 135665, 189931, 220850, 271330, 379862, 441700, 542660, 678325, 759724, 949655, 1356650, 1899310, 2713300, 3798620, 4748275, 9496550, 18993100]

約数ペア:

[(1, 18993100), (2, 9496550), (4, 4748275), (5, 3798620), (7, 2713300), (10, 1899310), (14, 1356650), (20, 949655), (25, 759724), (28, 678325), (35, 542660), (43, 441700), (50, 379862), (70, 271330), (86, 220850), (100, 189931), (140, 135665), (172, 110425), (175, 108532), (215, 88340), (301, 63100), (350, 54266), (430, 44170), (602, 31550), (631, 30100), (700, 27133), (860, 22085), (1075, 17668), (1204, 15775), (1262, 15050), (1505, 12620), (2150, 8834), (2524, 7525), (3010, 6310), (3155, 6020), (4300, 4417)]