19875480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1861}}^1$

素因数の和:1964

約数の個数: 64

約数和(自身を含む): 60328800

約数和(自身を除く): 40453320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 120, 178, 267, 356, 445, 534, 712, 890, 1068, 1335, 1780, 1861, 2136, 2670, 3560, 3722, 5340, 5583, 7444, 9305, 10680, 11166, 14888, 18610, 22332, 27915, 37220, 44664, 55830, 74440, 111660, 165629, 223320, 331258, 496887, 662516, 828145, 993774, 1325032, 1656290, 1987548, 2484435, 3312580, 3975096, 4968870, 6625160, 9937740, 19875480]

約数ペア:

[(1, 19875480), (2, 9937740), (3, 6625160), (4, 4968870), (5, 3975096), (6, 3312580), (8, 2484435), (10, 1987548), (12, 1656290), (15, 1325032), (20, 993774), (24, 828145), (30, 662516), (40, 496887), (60, 331258), (89, 223320), (120, 165629), (178, 111660), (267, 74440), (356, 55830), (445, 44664), (534, 37220), (712, 27915), (890, 22332), (1068, 18610), (1335, 14888), (1780, 11166), (1861, 10680), (2136, 9305), (2670, 7444), (3560, 5583), (3722, 5340)]