20317140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2753}}^1$

素因数の和:2809

約数の個数: 72

約数和(自身を含む): 63154728

約数和(自身を除く): 42837588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2753, 3690, 5506, 7380, 8259, 11012, 13765, 16518, 24777, 27530, 33036, 41295, 49554, 55060, 82590, 99108, 112873, 123885, 165180, 225746, 247770, 338619, 451492, 495540, 564365, 677238, 1015857, 1128730, 1354476, 1693095, 2031714, 2257460, 3386190, 4063428, 5079285, 6772380, 10158570, 20317140]

約数ペア:

[(1, 20317140), (2, 10158570), (3, 6772380), (4, 5079285), (5, 4063428), (6, 3386190), (9, 2257460), (10, 2031714), (12, 1693095), (15, 1354476), (18, 1128730), (20, 1015857), (30, 677238), (36, 564365), (41, 495540), (45, 451492), (60, 338619), (82, 247770), (90, 225746), (123, 165180), (164, 123885), (180, 112873), (205, 99108), (246, 82590), (369, 55060), (410, 49554), (492, 41295), (615, 33036), (738, 27530), (820, 24777), (1230, 16518), (1476, 13765), (1845, 11012), (2460, 8259), (2753, 7380), (3690, 5506)]