20883720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1217}}^1$

素因数の和:1255

約数の個数: 128

約数和(自身を含む): 73664640

約数和(自身を除く): 52780920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 156, 165, 195, 220, 260, 264, 286, 312, 330, 390, 429, 440, 520, 572, 660, 715, 780, 858, 1144, 1217, 1320, 1430, 1560, 1716, 2145, 2434, 2860, 3432, 3651, 4290, 4868, 5720, 6085, 7302, 8580, 9736, 12170, 13387, 14604, 15821, 17160, 18255, 24340, 26774, 29208, 31642, 36510, 40161, 47463, 48680, 53548, 63284, 66935, 73020, 79105, 80322, 94926, 107096, 126568, 133870, 146040, 158210, 160644, 174031, 189852, 200805, 237315, 267740, 316420, 321288, 348062, 379704, 401610, 474630, 522093, 535480, 632840, 696124, 803220, 870155, 949260, 1044186, 1392248, 1606440, 1740310, 1898520, 2088372, 2610465, 3480620, 4176744, 5220930, 6961240, 10441860, 20883720]

約数ペア:

[(1, 20883720), (2, 10441860), (3, 6961240), (4, 5220930), (5, 4176744), (6, 3480620), (8, 2610465), (10, 2088372), (11, 1898520), (12, 1740310), (13, 1606440), (15, 1392248), (20, 1044186), (22, 949260), (24, 870155), (26, 803220), (30, 696124), (33, 632840), (39, 535480), (40, 522093), (44, 474630), (52, 401610), (55, 379704), (60, 348062), (65, 321288), (66, 316420), (78, 267740), (88, 237315), (104, 200805), (110, 189852), (120, 174031), (130, 160644), (132, 158210), (143, 146040), (156, 133870), (165, 126568), (195, 107096), (220, 94926), (260, 80322), (264, 79105), (286, 73020), (312, 66935), (330, 63284), (390, 53548), (429, 48680), (440, 47463), (520, 40161), (572, 36510), (660, 31642), (715, 29208), (780, 26774), (858, 24340), (1144, 18255), (1217, 17160), (1320, 15821), (1430, 14604), (1560, 13387), (1716, 12170), (2145, 9736), (2434, 8580), (2860, 7302), (3432, 6085), (3651, 5720), (4290, 4868)]