19423440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 120

約数和(自身を含む): 66591720

約数和(自身を除く): 47168280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 53, 60, 72, 80, 90, 106, 120, 144, 159, 180, 212, 240, 265, 318, 360, 424, 477, 509, 530, 636, 720, 795, 848, 954, 1018, 1060, 1272, 1527, 1590, 1908, 2036, 2120, 2385, 2544, 2545, 3054, 3180, 3816, 4072, 4240, 4581, 4770, 5090, 6108, 6360, 7632, 7635, 8144, 9162, 9540, 10180, 12216, 12720, 15270, 18324, 19080, 20360, 22905, 24432, 26977, 30540, 36648, 38160, 40720, 45810, 53954, 61080, 73296, 80931, 91620, 107908, 122160, 134885, 161862, 183240, 215816, 242793, 269770, 323724, 366480, 404655, 431632, 485586, 539540, 647448, 809310, 971172, 1079080, 1213965, 1294896, 1618620, 1942344, 2158160, 2427930, 3237240, 3884688, 4855860, 6474480, 9711720, 19423440]

約数ペア:

[(1, 19423440), (2, 9711720), (3, 6474480), (4, 4855860), (5, 3884688), (6, 3237240), (8, 2427930), (9, 2158160), (10, 1942344), (12, 1618620), (15, 1294896), (16, 1213965), (18, 1079080), (20, 971172), (24, 809310), (30, 647448), (36, 539540), (40, 485586), (45, 431632), (48, 404655), (53, 366480), (60, 323724), (72, 269770), (80, 242793), (90, 215816), (106, 183240), (120, 161862), (144, 134885), (159, 122160), (180, 107908), (212, 91620), (240, 80931), (265, 73296), (318, 61080), (360, 53954), (424, 45810), (477, 40720), (509, 38160), (530, 36648), (636, 30540), (720, 26977), (795, 24432), (848, 22905), (954, 20360), (1018, 19080), (1060, 18324), (1272, 15270), (1527, 12720), (1590, 12216), (1908, 10180), (2036, 9540), (2120, 9162), (2385, 8144), (2544, 7635), (2545, 7632), (3054, 6360), (3180, 6108), (3816, 5090), (4072, 4770), (4240, 4581)]