20694660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{7039}}^1$

素因数の和:7065

約数の個数: 72

約数和(自身を含む): 67415040

約数和(自身を除く): 46720380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 7039, 14078, 21117, 28156, 35195, 42234, 49273, 70390, 84468, 98546, 105585, 140780, 147819, 197092, 211170, 246365, 295638, 344911, 422340, 492730, 591276, 689822, 739095, 985460, 1034733, 1379644, 1478190, 1724555, 2069466, 2956380, 3449110, 4138932, 5173665, 6898220, 10347330, 20694660]

約数ペア:

[(1, 20694660), (2, 10347330), (3, 6898220), (4, 5173665), (5, 4138932), (6, 3449110), (7, 2956380), (10, 2069466), (12, 1724555), (14, 1478190), (15, 1379644), (20, 1034733), (21, 985460), (28, 739095), (30, 689822), (35, 591276), (42, 492730), (49, 422340), (60, 344911), (70, 295638), (84, 246365), (98, 211170), (105, 197092), (140, 147819), (147, 140780), (196, 105585), (210, 98546), (245, 84468), (294, 70390), (420, 49273), (490, 42234), (588, 35195), (735, 28156), (980, 21117), (1470, 14078), (2940, 7039)]