18903808215

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1\times {\mathrm{709}}^1$

素因数の和:1054

約数の個数: 128

約数和(自身を含む): 36381081600

約数和(自身を除く): 17477273385

約数列:

[1, 3, 5, 9, 15, 23, 27, 31, 45, 69, 93, 115, 135, 155, 207, 277, 279, 345, 465, 621, 709, 713, 831, 837, 1035, 1385, 1395, 2127, 2139, 2493, 3105, 3545, 3565, 4155, 4185, 6371, 6381, 6417, 7479, 8587, 10635, 10695, 12465, 16307, 19113, 19143, 19251, 21979, 25761, 31855, 31905, 32085, 37395, 42935, 48921, 57339, 65937, 77283, 81535, 95565, 95715, 96255, 109895, 128805, 146763, 172017, 196393, 197501, 197811, 231849, 244605, 286695, 329685, 386415, 440289, 505517, 589179, 592503, 593433, 733815, 860085, 981965, 987505, 989055, 1159245, 1516551, 1767537, 1777509, 2201445, 2527585, 2945895, 2962515, 2967165, 4517039, 4549653, 5302611, 5332527, 6088183, 7582755, 8837685, 8887545, 13551117, 13648959, 18264549, 22585195, 22748265, 26513055, 26662635, 30440915, 40653351, 54793647, 67755585, 68244795, 91322745, 121960053, 140028209, 164380941, 203266755, 273968235, 420084627, 609800265, 700141045, 821904705, 1260253881, 2100423135, 3780761643, 6301269405, 18903808215]

約数ペア:

[(1, 18903808215), (3, 6301269405), (5, 3780761643), (9, 2100423135), (15, 1260253881), (23, 821904705), (27, 700141045), (31, 609800265), (45, 420084627), (69, 273968235), (93, 203266755), (115, 164380941), (135, 140028209), (155, 121960053), (207, 91322745), (277, 68244795), (279, 67755585), (345, 54793647), (465, 40653351), (621, 30440915), (709, 26662635), (713, 26513055), (831, 22748265), (837, 22585195), (1035, 18264549), (1385, 13648959), (1395, 13551117), (2127, 8887545), (2139, 8837685), (2493, 7582755), (3105, 6088183), (3545, 5332527), (3565, 5302611), (4155, 4549653), (4185, 4517039), (6371, 2967165), (6381, 2962515), (6417, 2945895), (7479, 2527585), (8587, 2201445), (10635, 1777509), (10695, 1767537), (12465, 1516551), (16307, 1159245), (19113, 989055), (19143, 987505), (19251, 981965), (21979, 860085), (25761, 733815), (31855, 593433), (31905, 592503), (32085, 589179), (37395, 505517), (42935, 440289), (48921, 386415), (57339, 329685), (65937, 286695), (77283, 244605), (81535, 231849), (95565, 197811), (95715, 197501), (96255, 196393), (109895, 172017), (128805, 146763)]