19813440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20639}}^1$

素因数の和:20659

約数の個数: 56

約数和(自身を含む): 62910720

約数和(自身を除く): 43097280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 20639, 41278, 61917, 82556, 103195, 123834, 165112, 206390, 247668, 309585, 330224, 412780, 495336, 619170, 660448, 825560, 990672, 1238340, 1320896, 1651120, 1981344, 2476680, 3302240, 3962688, 4953360, 6604480, 9906720, 19813440]

約数ペア:

[(1, 19813440), (2, 9906720), (3, 6604480), (4, 4953360), (5, 3962688), (6, 3302240), (8, 2476680), (10, 1981344), (12, 1651120), (15, 1320896), (16, 1238340), (20, 990672), (24, 825560), (30, 660448), (32, 619170), (40, 495336), (48, 412780), (60, 330224), (64, 309585), (80, 247668), (96, 206390), (120, 165112), (160, 123834), (192, 103195), (240, 82556), (320, 61917), (480, 41278), (960, 20639)]