20862240

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{887}}^1$

素因数の和:919

約数の個数: 144

約数和(自身を含む): 76531392

約数和(自身を除く): 55669152

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 887, 980, 1120, 1176, 1470, 1568, 1680, 1774, 1960, 2352, 2661, 2940, 3360, 3548, 3920, 4435, 4704, 5322, 5880, 6209, 7096, 7840, 8870, 10644, 11760, 12418, 13305, 14192, 17740, 18627, 21288, 23520, 24836, 26610, 28384, 31045, 35480, 37254, 42576, 43463, 49672, 53220, 62090, 70960, 74508, 85152, 86926, 93135, 99344, 106440, 124180, 130389, 141920, 149016, 173852, 186270, 198688, 212880, 217315, 248360, 260778, 298032, 347704, 372540, 425760, 434630, 496720, 521556, 596064, 651945, 695408, 745080, 869260, 993440, 1043112, 1303890, 1390816, 1490160, 1738520, 2086224, 2607780, 2980320, 3477040, 4172448, 5215560, 6954080, 10431120, 20862240]

約数ペア:

[(1, 20862240), (2, 10431120), (3, 6954080), (4, 5215560), (5, 4172448), (6, 3477040), (7, 2980320), (8, 2607780), (10, 2086224), (12, 1738520), (14, 1490160), (15, 1390816), (16, 1303890), (20, 1043112), (21, 993440), (24, 869260), (28, 745080), (30, 695408), (32, 651945), (35, 596064), (40, 521556), (42, 496720), (48, 434630), (49, 425760), (56, 372540), (60, 347704), (70, 298032), (80, 260778), (84, 248360), (96, 217315), (98, 212880), (105, 198688), (112, 186270), (120, 173852), (140, 149016), (147, 141920), (160, 130389), (168, 124180), (196, 106440), (210, 99344), (224, 93135), (240, 86926), (245, 85152), (280, 74508), (294, 70960), (336, 62090), (392, 53220), (420, 49672), (480, 43463), (490, 42576), (560, 37254), (588, 35480), (672, 31045), (735, 28384), (784, 26610), (840, 24836), (887, 23520), (980, 21288), (1120, 18627), (1176, 17740), (1470, 14192), (1568, 13305), (1680, 12418), (1774, 11760), (1960, 10644), (2352, 8870), (2661, 7840), (2940, 7096), (3360, 6209), (3548, 5880), (3920, 5322), (4435, 4704)]