19912740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4201}}^1$

素因数の和:4292

約数の個数: 48

約数和(自身を含む): 56474880

約数和(自身を除く): 36562140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4201, 4740, 8402, 12603, 16804, 21005, 25206, 42010, 50412, 63015, 84020, 126030, 252060, 331879, 663758, 995637, 1327516, 1659395, 1991274, 3318790, 3982548, 4978185, 6637580, 9956370, 19912740]

約数ペア:

[(1, 19912740), (2, 9956370), (3, 6637580), (4, 4978185), (5, 3982548), (6, 3318790), (10, 1991274), (12, 1659395), (15, 1327516), (20, 995637), (30, 663758), (60, 331879), (79, 252060), (158, 126030), (237, 84020), (316, 63015), (395, 50412), (474, 42010), (790, 25206), (948, 21005), (1185, 16804), (1580, 12603), (2370, 8402), (4201, 4740)]