19484325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 40622400

約数和(自身を除く): 21138075

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 89, 105, 139, 175, 225, 267, 315, 417, 445, 525, 623, 695, 801, 973, 1251, 1335, 1575, 1869, 2085, 2225, 2919, 3115, 3475, 4005, 4865, 5607, 6255, 6675, 8757, 9345, 10425, 12371, 14595, 15575, 20025, 24325, 28035, 31275, 37113, 43785, 46725, 61855, 72975, 86597, 111339, 140175, 185565, 218925, 259791, 309275, 432985, 556695, 779373, 927825, 1298955, 2164925, 2783475, 3896865, 6494775, 19484325]

約数ペア:

[(1, 19484325), (3, 6494775), (5, 3896865), (7, 2783475), (9, 2164925), (15, 1298955), (21, 927825), (25, 779373), (35, 556695), (45, 432985), (63, 309275), (75, 259791), (89, 218925), (105, 185565), (139, 140175), (175, 111339), (225, 86597), (267, 72975), (315, 61855), (417, 46725), (445, 43785), (525, 37113), (623, 31275), (695, 28035), (801, 24325), (973, 20025), (1251, 15575), (1335, 14595), (1575, 12371), (1869, 10425), (2085, 9345), (2225, 8757), (2919, 6675), (3115, 6255), (3475, 5607), (4005, 4865)]