19743760

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 28467440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 59, 80, 89, 94, 118, 178, 188, 235, 236, 295, 356, 376, 445, 470, 472, 590, 712, 752, 890, 940, 944, 1180, 1424, 1780, 1880, 2360, 2773, 3560, 3760, 4183, 4720, 5251, 5546, 7120, 8366, 10502, 11092, 13865, 16732, 20915, 21004, 22184, 26255, 27730, 33464, 41830, 42008, 44368, 52510, 55460, 66928, 83660, 84016, 105020, 110920, 167320, 210040, 221840, 246797, 334640, 420080, 493594, 987188, 1233985, 1974376, 2467970, 3948752, 4935940, 9871880, 19743760]

約数ペア:

[(1, 19743760), (2, 9871880), (4, 4935940), (5, 3948752), (8, 2467970), (10, 1974376), (16, 1233985), (20, 987188), (40, 493594), (47, 420080), (59, 334640), (80, 246797), (89, 221840), (94, 210040), (118, 167320), (178, 110920), (188, 105020), (235, 84016), (236, 83660), (295, 66928), (356, 55460), (376, 52510), (445, 44368), (470, 42008), (472, 41830), (590, 33464), (712, 27730), (752, 26255), (890, 22184), (940, 21004), (944, 20915), (1180, 16732), (1424, 13865), (1780, 11092), (1880, 10502), (2360, 8366), (2773, 7120), (3560, 5546), (3760, 5251), (4183, 4720)]