20171291690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{373}}^1$

素因数の和:669

約数の個数: 128

約数和(自身を含む): 42576399360

約数和(自身を除く): 22405107670

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 121, 170, 187, 239, 242, 373, 374, 478, 605, 746, 935, 1195, 1210, 1331, 1865, 1870, 2057, 2390, 2629, 2662, 3730, 4063, 4103, 4114, 5258, 6341, 6655, 8126, 8206, 10285, 12682, 13145, 13310, 20315, 20515, 20570, 22627, 26290, 28919, 31705, 40630, 41030, 44693, 45133, 45254, 57838, 63410, 69751, 89147, 89386, 90266, 113135, 139502, 144595, 178294, 223465, 225665, 226270, 289190, 318109, 348755, 445735, 446930, 451330, 491623, 496463, 636218, 697510, 767261, 891470, 980617, 983246, 992926, 1515499, 1534522, 1590545, 1961234, 2458115, 2482315, 3030998, 3181090, 3836305, 4903085, 4916230, 4964630, 5407853, 7577495, 7672610, 8439871, 9806170, 10786787, 10815706, 15154990, 16670489, 16879742, 21573574, 27039265, 33340978, 42199355, 53933935, 54078530, 83352445, 84398710, 107867870, 118654657, 166704890, 183375379, 237309314, 366750758, 593273285, 916876895, 1186546570, 1833753790, 2017129169, 4034258338, 10085645845, 20171291690]

約数ペア:

[(1, 20171291690), (2, 10085645845), (5, 4034258338), (10, 2017129169), (11, 1833753790), (17, 1186546570), (22, 916876895), (34, 593273285), (55, 366750758), (85, 237309314), (110, 183375379), (121, 166704890), (170, 118654657), (187, 107867870), (239, 84398710), (242, 83352445), (373, 54078530), (374, 53933935), (478, 42199355), (605, 33340978), (746, 27039265), (935, 21573574), (1195, 16879742), (1210, 16670489), (1331, 15154990), (1865, 10815706), (1870, 10786787), (2057, 9806170), (2390, 8439871), (2629, 7672610), (2662, 7577495), (3730, 5407853), (4063, 4964630), (4103, 4916230), (4114, 4903085), (5258, 3836305), (6341, 3181090), (6655, 3030998), (8126, 2482315), (8206, 2458115), (10285, 1961234), (12682, 1590545), (13145, 1534522), (13310, 1515499), (20315, 992926), (20515, 983246), (20570, 980617), (22627, 891470), (26290, 767261), (28919, 697510), (31705, 636218), (40630, 496463), (41030, 491623), (44693, 451330), (45133, 446930), (45254, 445735), (57838, 348755), (63410, 318109), (69751, 289190), (89147, 226270), (89386, 225665), (90266, 223465), (113135, 178294), (139502, 144595)]