19273660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 47918304

約数和(自身を除く): 28644644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 277, 284, 355, 490, 497, 554, 710, 980, 994, 1108, 1385, 1420, 1939, 1988, 2485, 2770, 3479, 3878, 4970, 5540, 6958, 7756, 9695, 9940, 13573, 13916, 17395, 19390, 19667, 27146, 34790, 38780, 39334, 54292, 67865, 69580, 78668, 98335, 135730, 137669, 196670, 271460, 275338, 393340, 550676, 688345, 963683, 1376690, 1927366, 2753380, 3854732, 4818415, 9636830, 19273660]

約数ペア:

[(1, 19273660), (2, 9636830), (4, 4818415), (5, 3854732), (7, 2753380), (10, 1927366), (14, 1376690), (20, 963683), (28, 688345), (35, 550676), (49, 393340), (70, 275338), (71, 271460), (98, 196670), (140, 137669), (142, 135730), (196, 98335), (245, 78668), (277, 69580), (284, 67865), (355, 54292), (490, 39334), (497, 38780), (554, 34790), (710, 27146), (980, 19667), (994, 19390), (1108, 17395), (1385, 13916), (1420, 13573), (1939, 9940), (1988, 9695), (2485, 7756), (2770, 6958), (3479, 5540), (3878, 4970)]