20569080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:589

約数の個数: 128

約数和(自身を含む): 72161280

約数和(自身を除く): 51592200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 56, 60, 70, 84, 94, 105, 120, 140, 141, 168, 188, 210, 235, 280, 282, 329, 376, 420, 470, 521, 564, 658, 705, 840, 940, 987, 1042, 1128, 1316, 1410, 1563, 1645, 1880, 1974, 2084, 2605, 2632, 2820, 3126, 3290, 3647, 3948, 4168, 4935, 5210, 5640, 6252, 6580, 7294, 7815, 7896, 9870, 10420, 10941, 12504, 13160, 14588, 15630, 18235, 19740, 20840, 21882, 24487, 29176, 31260, 36470, 39480, 43764, 48974, 54705, 62520, 72940, 73461, 87528, 97948, 109410, 122435, 145880, 146922, 171409, 195896, 218820, 244870, 293844, 342818, 367305, 437640, 489740, 514227, 587688, 685636, 734610, 857045, 979480, 1028454, 1371272, 1469220, 1714090, 2056908, 2571135, 2938440, 3428180, 4113816, 5142270, 6856360, 10284540, 20569080]

約数ペア:

[(1, 20569080), (2, 10284540), (3, 6856360), (4, 5142270), (5, 4113816), (6, 3428180), (7, 2938440), (8, 2571135), (10, 2056908), (12, 1714090), (14, 1469220), (15, 1371272), (20, 1028454), (21, 979480), (24, 857045), (28, 734610), (30, 685636), (35, 587688), (40, 514227), (42, 489740), (47, 437640), (56, 367305), (60, 342818), (70, 293844), (84, 244870), (94, 218820), (105, 195896), (120, 171409), (140, 146922), (141, 145880), (168, 122435), (188, 109410), (210, 97948), (235, 87528), (280, 73461), (282, 72940), (329, 62520), (376, 54705), (420, 48974), (470, 43764), (521, 39480), (564, 36470), (658, 31260), (705, 29176), (840, 24487), (940, 21882), (987, 20840), (1042, 19740), (1128, 18235), (1316, 15630), (1410, 14588), (1563, 13160), (1645, 12504), (1880, 10941), (1974, 10420), (2084, 9870), (2605, 7896), (2632, 7815), (2820, 7294), (3126, 6580), (3290, 6252), (3647, 5640), (3948, 5210), (4168, 4935)]