19705320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 64696320

約数和(自身を除く): 44991000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 127, 180, 254, 360, 381, 431, 508, 635, 762, 862, 1016, 1143, 1270, 1293, 1524, 1724, 1905, 2155, 2286, 2540, 2586, 3048, 3448, 3810, 3879, 4310, 4572, 5080, 5172, 5715, 6465, 7620, 7758, 8620, 9144, 10344, 11430, 12930, 15240, 15516, 17240, 19395, 22860, 25860, 31032, 38790, 45720, 51720, 54737, 77580, 109474, 155160, 164211, 218948, 273685, 328422, 437896, 492633, 547370, 656844, 821055, 985266, 1094740, 1313688, 1642110, 1970532, 2189480, 2463165, 3284220, 3941064, 4926330, 6568440, 9852660, 19705320]

約数ペア:

[(1, 19705320), (2, 9852660), (3, 6568440), (4, 4926330), (5, 3941064), (6, 3284220), (8, 2463165), (9, 2189480), (10, 1970532), (12, 1642110), (15, 1313688), (18, 1094740), (20, 985266), (24, 821055), (30, 656844), (36, 547370), (40, 492633), (45, 437896), (60, 328422), (72, 273685), (90, 218948), (120, 164211), (127, 155160), (180, 109474), (254, 77580), (360, 54737), (381, 51720), (431, 45720), (508, 38790), (635, 31032), (762, 25860), (862, 22860), (1016, 19395), (1143, 17240), (1270, 15516), (1293, 15240), (1524, 12930), (1724, 11430), (1905, 10344), (2155, 9144), (2286, 8620), (2540, 7758), (2586, 7620), (3048, 6465), (3448, 5715), (3810, 5172), (3879, 5080), (4310, 4572)]