18891720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{541}}^1$

素因数の和:655

約数の個数: 96

約数和(自身を含む): 62145720

約数和(自身を除く): 43254000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 97, 120, 180, 194, 291, 360, 388, 485, 541, 582, 776, 873, 970, 1082, 1164, 1455, 1623, 1746, 1940, 2164, 2328, 2705, 2910, 3246, 3492, 3880, 4328, 4365, 4869, 5410, 5820, 6492, 6984, 8115, 8730, 9738, 10820, 11640, 12984, 16230, 17460, 19476, 21640, 24345, 32460, 34920, 38952, 48690, 52477, 64920, 97380, 104954, 157431, 194760, 209908, 262385, 314862, 419816, 472293, 524770, 629724, 787155, 944586, 1049540, 1259448, 1574310, 1889172, 2099080, 2361465, 3148620, 3778344, 4722930, 6297240, 9445860, 18891720]

約数ペア:

[(1, 18891720), (2, 9445860), (3, 6297240), (4, 4722930), (5, 3778344), (6, 3148620), (8, 2361465), (9, 2099080), (10, 1889172), (12, 1574310), (15, 1259448), (18, 1049540), (20, 944586), (24, 787155), (30, 629724), (36, 524770), (40, 472293), (45, 419816), (60, 314862), (72, 262385), (90, 209908), (97, 194760), (120, 157431), (180, 104954), (194, 97380), (291, 64920), (360, 52477), (388, 48690), (485, 38952), (541, 34920), (582, 32460), (776, 24345), (873, 21640), (970, 19476), (1082, 17460), (1164, 16230), (1455, 12984), (1623, 11640), (1746, 10820), (1940, 9738), (2164, 8730), (2328, 8115), (2705, 6984), (2910, 6492), (3246, 5820), (3492, 5410), (3880, 4869), (4328, 4365)]