20138625

素因数分解:

$3^6\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 112

約数和(自身を含む): 42968016

約数和(自身を除く): 22829391

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 27, 39, 45, 51, 65, 75, 81, 85, 117, 125, 135, 153, 195, 221, 225, 243, 255, 325, 351, 375, 405, 425, 459, 585, 663, 675, 729, 765, 975, 1053, 1105, 1125, 1215, 1275, 1377, 1625, 1755, 1989, 2025, 2125, 2295, 2925, 3159, 3315, 3375, 3645, 3825, 4131, 4875, 5265, 5525, 5967, 6075, 6375, 6885, 8775, 9477, 9945, 10125, 11475, 12393, 14625, 15795, 16575, 17901, 18225, 19125, 20655, 26325, 27625, 29835, 30375, 34425, 43875, 47385, 49725, 53703, 57375, 61965, 78975, 82875, 89505, 91125, 103275, 131625, 149175, 161109, 172125, 236925, 248625, 268515, 309825, 394875, 447525, 516375, 745875, 805545, 1184625, 1342575, 1549125, 2237625, 4027725, 6712875, 20138625]

約数ペア:

[(1, 20138625), (3, 6712875), (5, 4027725), (9, 2237625), (13, 1549125), (15, 1342575), (17, 1184625), (25, 805545), (27, 745875), (39, 516375), (45, 447525), (51, 394875), (65, 309825), (75, 268515), (81, 248625), (85, 236925), (117, 172125), (125, 161109), (135, 149175), (153, 131625), (195, 103275), (221, 91125), (225, 89505), (243, 82875), (255, 78975), (325, 61965), (351, 57375), (375, 53703), (405, 49725), (425, 47385), (459, 43875), (585, 34425), (663, 30375), (675, 29835), (729, 27625), (765, 26325), (975, 20655), (1053, 19125), (1105, 18225), (1125, 17901), (1215, 16575), (1275, 15795), (1377, 14625), (1625, 12393), (1755, 11475), (1989, 10125), (2025, 9945), (2125, 9477), (2295, 8775), (2925, 6885), (3159, 6375), (3315, 6075), (3375, 5967), (3645, 5525), (3825, 5265), (4131, 4875)]