1251340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 2872800

約数和(自身を除く): 1621460

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 89, 95, 148, 178, 185, 190, 356, 370, 380, 445, 703, 740, 890, 1406, 1691, 1780, 2812, 3293, 3382, 3515, 6586, 6764, 7030, 8455, 13172, 14060, 16465, 16910, 32930, 33820, 62567, 65860, 125134, 250268, 312835, 625670, 1251340]

約数ペア:

[(1, 1251340), (2, 625670), (4, 312835), (5, 250268), (10, 125134), (19, 65860), (20, 62567), (37, 33820), (38, 32930), (74, 16910), (76, 16465), (89, 14060), (95, 13172), (148, 8455), (178, 7030), (185, 6764), (190, 6586), (356, 3515), (370, 3382), (380, 3293), (445, 2812), (703, 1780), (740, 1691), (890, 1406)]