20607540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 61205760

約数和(自身を除く): 40598220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 109, 115, 137, 138, 218, 230, 274, 276, 327, 345, 411, 436, 460, 545, 548, 654, 685, 690, 822, 1090, 1308, 1370, 1380, 1635, 1644, 2055, 2180, 2507, 2740, 3151, 3270, 4110, 5014, 6302, 6540, 7521, 8220, 9453, 10028, 12535, 12604, 14933, 15042, 15755, 18906, 25070, 29866, 30084, 31510, 37605, 37812, 44799, 47265, 50140, 59732, 63020, 74665, 75210, 89598, 94530, 149330, 150420, 179196, 189060, 223995, 298660, 343459, 447990, 686918, 895980, 1030377, 1373836, 1717295, 2060754, 3434590, 4121508, 5151885, 6869180, 10303770, 20607540]

約数ペア:

[(1, 20607540), (2, 10303770), (3, 6869180), (4, 5151885), (5, 4121508), (6, 3434590), (10, 2060754), (12, 1717295), (15, 1373836), (20, 1030377), (23, 895980), (30, 686918), (46, 447990), (60, 343459), (69, 298660), (92, 223995), (109, 189060), (115, 179196), (137, 150420), (138, 149330), (218, 94530), (230, 89598), (274, 75210), (276, 74665), (327, 63020), (345, 59732), (411, 50140), (436, 47265), (460, 44799), (545, 37812), (548, 37605), (654, 31510), (685, 30084), (690, 29866), (822, 25070), (1090, 18906), (1308, 15755), (1370, 15042), (1380, 14933), (1635, 12604), (1644, 12535), (2055, 10028), (2180, 9453), (2507, 8220), (2740, 7521), (3151, 6540), (3270, 6302), (4110, 5014)]