28772380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15809}}^1$

素因数の和:15838

約数の個数: 48

約数和(自身を含む): 74370240

約数和(自身を除く): 45597860

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15809, 31618, 63236, 79045, 110663, 158090, 205517, 221326, 316180, 411034, 442652, 553315, 822068, 1027585, 1106630, 1438619, 2055170, 2213260, 2877238, 4110340, 5754476, 7193095, 14386190, 28772380]

約数ペア:

[(1, 28772380), (2, 14386190), (4, 7193095), (5, 5754476), (7, 4110340), (10, 2877238), (13, 2213260), (14, 2055170), (20, 1438619), (26, 1106630), (28, 1027585), (35, 822068), (52, 553315), (65, 442652), (70, 411034), (91, 316180), (130, 221326), (140, 205517), (182, 158090), (260, 110663), (364, 79045), (455, 63236), (910, 31618), (1820, 15809)]