7219940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3967}}^1$

素因数の和:3996

約数の個数: 48

約数和(自身を含む): 18665472

約数和(自身を除く): 11445532

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, 3967, 7934, 15868, 19835, 27769, 39670, 51571, 55538, 79340, 103142, 111076, 138845, 206284, 257855, 277690, 360997, 515710, 555380, 721994, 1031420, 1443988, 1804985, 3609970, 7219940]

約数ペア:

[(1, 7219940), (2, 3609970), (4, 1804985), (5, 1443988), (7, 1031420), (10, 721994), (13, 555380), (14, 515710), (20, 360997), (26, 277690), (28, 257855), (35, 206284), (52, 138845), (65, 111076), (70, 103142), (91, 79340), (130, 55538), (140, 51571), (182, 39670), (260, 27769), (364, 19835), (455, 15868), (910, 7934), (1820, 3967)]