12161900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 28696080

約数和(自身を除く): 16534180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 37, 38, 50, 74, 76, 95, 100, 148, 173, 185, 190, 346, 370, 380, 475, 692, 703, 740, 865, 925, 950, 1406, 1730, 1850, 1900, 2812, 3287, 3460, 3515, 3700, 4325, 6401, 6574, 7030, 8650, 12802, 13148, 14060, 16435, 17300, 17575, 25604, 32005, 32870, 35150, 64010, 65740, 70300, 82175, 121619, 128020, 160025, 164350, 243238, 320050, 328700, 486476, 608095, 640100, 1216190, 2432380, 3040475, 6080950, 12161900]

約数ペア:

[(1, 12161900), (2, 6080950), (4, 3040475), (5, 2432380), (10, 1216190), (19, 640100), (20, 608095), (25, 486476), (37, 328700), (38, 320050), (50, 243238), (74, 164350), (76, 160025), (95, 128020), (100, 121619), (148, 82175), (173, 70300), (185, 65740), (190, 64010), (346, 35150), (370, 32870), (380, 32005), (475, 25604), (692, 17575), (703, 17300), (740, 16435), (865, 14060), (925, 13148), (950, 12802), (1406, 8650), (1730, 7030), (1850, 6574), (1900, 6401), (2812, 4325), (3287, 3700), (3460, 3515)]