28958020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2273}}^1$

素因数の和:2309

約数の個数: 72

約数和(自身を含む): 76215384

約数和(自身を除く): 47257364

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, 2273, 2548, 3185, 4546, 6370, 9092, 11365, 12740, 15911, 22730, 29549, 31822, 45460, 59098, 63644, 79555, 111377, 118196, 147745, 159110, 206843, 222754, 295490, 318220, 413686, 445508, 556885, 590980, 827372, 1034215, 1113770, 1447901, 2068430, 2227540, 2895802, 4136860, 5791604, 7239505, 14479010, 28958020]

約数ペア:

[(1, 28958020), (2, 14479010), (4, 7239505), (5, 5791604), (7, 4136860), (10, 2895802), (13, 2227540), (14, 2068430), (20, 1447901), (26, 1113770), (28, 1034215), (35, 827372), (49, 590980), (52, 556885), (65, 445508), (70, 413686), (91, 318220), (98, 295490), (130, 222754), (140, 206843), (182, 159110), (196, 147745), (245, 118196), (260, 111377), (364, 79555), (455, 63644), (490, 59098), (637, 45460), (910, 31822), (980, 29549), (1274, 22730), (1820, 15911), (2273, 12740), (2548, 11365), (3185, 9092), (4546, 6370)]