19205520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1861}}^1$

素因数の和:1920

約数の個数: 80

約数和(自身を含む): 60954432

約数和(自身を除く): 41748912

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 1861, 2064, 2580, 3440, 3722, 5160, 5583, 7444, 9305, 10320, 11166, 14888, 18610, 22332, 27915, 29776, 37220, 44664, 55830, 74440, 80023, 89328, 111660, 148880, 160046, 223320, 240069, 320092, 400115, 446640, 480138, 640184, 800230, 960276, 1200345, 1280368, 1600460, 1920552, 2400690, 3200920, 3841104, 4801380, 6401840, 9602760, 19205520]

約数ペア:

[(1, 19205520), (2, 9602760), (3, 6401840), (4, 4801380), (5, 3841104), (6, 3200920), (8, 2400690), (10, 1920552), (12, 1600460), (15, 1280368), (16, 1200345), (20, 960276), (24, 800230), (30, 640184), (40, 480138), (43, 446640), (48, 400115), (60, 320092), (80, 240069), (86, 223320), (120, 160046), (129, 148880), (172, 111660), (215, 89328), (240, 80023), (258, 74440), (344, 55830), (430, 44664), (516, 37220), (645, 29776), (688, 27915), (860, 22332), (1032, 18610), (1290, 14888), (1720, 11166), (1861, 10320), (2064, 9305), (2580, 7444), (3440, 5583), (3722, 5160)]