28011720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21221}}^1$

素因数の和:21246

約数の個数: 64

約数和(自身を含む): 91679040

約数和(自身を除く): 63667320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 21221, 42442, 63663, 84884, 106105, 127326, 169768, 212210, 233431, 254652, 318315, 424420, 466862, 509304, 636630, 700293, 848840, 933724, 1167155, 1273260, 1400586, 1867448, 2334310, 2546520, 2801172, 3501465, 4668620, 5602344, 7002930, 9337240, 14005860, 28011720]

約数ペア:

[(1, 28011720), (2, 14005860), (3, 9337240), (4, 7002930), (5, 5602344), (6, 4668620), (8, 3501465), (10, 2801172), (11, 2546520), (12, 2334310), (15, 1867448), (20, 1400586), (22, 1273260), (24, 1167155), (30, 933724), (33, 848840), (40, 700293), (44, 636630), (55, 509304), (60, 466862), (66, 424420), (88, 318315), (110, 254652), (120, 233431), (132, 212210), (165, 169768), (220, 127326), (264, 106105), (330, 84884), (440, 63663), (660, 42442), (1320, 21221)]