20732880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:114

約数の個数: 240

約数和(自身を含む): 78369984

約数和(自身を除く): 57637104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 41, 42, 43, 48, 49, 56, 60, 70, 80, 82, 84, 86, 98, 105, 112, 120, 123, 129, 140, 147, 164, 168, 172, 196, 205, 210, 215, 240, 245, 246, 258, 280, 287, 294, 301, 328, 336, 344, 392, 410, 420, 430, 490, 492, 516, 560, 574, 588, 602, 615, 645, 656, 688, 735, 784, 820, 840, 860, 861, 903, 980, 984, 1032, 1148, 1176, 1204, 1230, 1290, 1435, 1470, 1505, 1640, 1680, 1720, 1722, 1763, 1806, 1960, 1968, 2009, 2064, 2107, 2296, 2352, 2408, 2460, 2580, 2870, 2940, 3010, 3280, 3440, 3444, 3526, 3612, 3920, 4018, 4214, 4305, 4515, 4592, 4816, 4920, 5160, 5289, 5740, 5880, 6020, 6027, 6321, 6888, 7052, 7224, 8036, 8428, 8610, 8815, 9030, 9840, 10045, 10320, 10535, 10578, 11480, 11760, 12040, 12054, 12341, 12642, 13776, 14104, 14448, 16072, 16856, 17220, 17630, 18060, 20090, 21070, 21156, 22960, 24080, 24108, 24682, 25284, 26445, 28208, 30135, 31605, 32144, 33712, 34440, 35260, 36120, 37023, 40180, 42140, 42312, 48216, 49364, 50568, 52890, 60270, 61705, 63210, 68880, 70520, 72240, 74046, 80360, 84280, 84624, 86387, 96432, 98728, 101136, 105780, 120540, 123410, 126420, 141040, 148092, 160720, 168560, 172774, 185115, 197456, 211560, 241080, 246820, 252840, 259161, 296184, 345548, 370230, 423120, 431935, 482160, 493640, 505680, 518322, 592368, 691096, 740460, 863870, 987280, 1036644, 1295805, 1382192, 1480920, 1727740, 2073288, 2591610, 2961840, 3455480, 4146576, 5183220, 6910960, 10366440, 20732880]

約数ペア:

[(1, 20732880), (2, 10366440), (3, 6910960), (4, 5183220), (5, 4146576), (6, 3455480), (7, 2961840), (8, 2591610), (10, 2073288), (12, 1727740), (14, 1480920), (15, 1382192), (16, 1295805), (20, 1036644), (21, 987280), (24, 863870), (28, 740460), (30, 691096), (35, 592368), (40, 518322), (41, 505680), (42, 493640), (43, 482160), (48, 431935), (49, 423120), (56, 370230), (60, 345548), (70, 296184), (80, 259161), (82, 252840), (84, 246820), (86, 241080), (98, 211560), (105, 197456), (112, 185115), (120, 172774), (123, 168560), (129, 160720), (140, 148092), (147, 141040), (164, 126420), (168, 123410), (172, 120540), (196, 105780), (205, 101136), (210, 98728), (215, 96432), (240, 86387), (245, 84624), (246, 84280), (258, 80360), (280, 74046), (287, 72240), (294, 70520), (301, 68880), (328, 63210), (336, 61705), (344, 60270), (392, 52890), (410, 50568), (420, 49364), (430, 48216), (490, 42312), (492, 42140), (516, 40180), (560, 37023), (574, 36120), (588, 35260), (602, 34440), (615, 33712), (645, 32144), (656, 31605), (688, 30135), (735, 28208), (784, 26445), (820, 25284), (840, 24682), (860, 24108), (861, 24080), (903, 22960), (980, 21156), (984, 21070), (1032, 20090), (1148, 18060), (1176, 17630), (1204, 17220), (1230, 16856), (1290, 16072), (1435, 14448), (1470, 14104), (1505, 13776), (1640, 12642), (1680, 12341), (1720, 12054), (1722, 12040), (1763, 11760), (1806, 11480), (1960, 10578), (1968, 10535), (2009, 10320), (2064, 10045), (2107, 9840), (2296, 9030), (2352, 8815), (2408, 8610), (2460, 8428), (2580, 8036), (2870, 7224), (2940, 7052), (3010, 6888), (3280, 6321), (3440, 6027), (3444, 6020), (3526, 5880), (3612, 5740), (3920, 5289), (4018, 5160), (4214, 4920), (4305, 4816), (4515, 4592)]