105398020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8273}}^1$

素因数の和:8309

約数の個数: 72

約数和(自身を含む): 277311384

約数和(自身を除く): 171913364

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 8273, 12740, 16546, 33092, 41365, 57911, 82730, 107549, 115822, 165460, 215098, 231644, 289555, 405377, 430196, 537745, 579110, 752843, 810754, 1075490, 1158220, 1505686, 1621508, 2026885, 2150980, 3011372, 3764215, 4053770, 5269901, 7528430, 8107540, 10539802, 15056860, 21079604, 26349505, 52699010, 105398020]

約数ペア:

[(1, 105398020), (2, 52699010), (4, 26349505), (5, 21079604), (7, 15056860), (10, 10539802), (13, 8107540), (14, 7528430), (20, 5269901), (26, 4053770), (28, 3764215), (35, 3011372), (49, 2150980), (52, 2026885), (65, 1621508), (70, 1505686), (91, 1158220), (98, 1075490), (130, 810754), (140, 752843), (182, 579110), (196, 537745), (245, 430196), (260, 405377), (364, 289555), (455, 231644), (490, 215098), (637, 165460), (910, 115822), (980, 107549), (1274, 82730), (1820, 57911), (2548, 41365), (3185, 33092), (6370, 16546), (8273, 12740)]