2017788640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{257371}}^1$

素因数の和:257400

約数の個数: 72

約数和(自身を含む): 5545337112

約数和(自身を除く): 3527548472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 257371, 514742, 1029484, 1286855, 1801597, 2058968, 2573710, 3603194, 4117936, 5147420, 7206388, 8235872, 9007985, 10294840, 12611179, 14412776, 18015970, 20589680, 25222358, 28825552, 36031940, 41179360, 50444716, 57651104, 63055895, 72063880, 100889432, 126111790, 144127760, 201778864, 252223580, 288255520, 403557728, 504447160, 1008894320, 2017788640]

約数ペア:

[(1, 2017788640), (2, 1008894320), (4, 504447160), (5, 403557728), (7, 288255520), (8, 252223580), (10, 201778864), (14, 144127760), (16, 126111790), (20, 100889432), (28, 72063880), (32, 63055895), (35, 57651104), (40, 50444716), (49, 41179360), (56, 36031940), (70, 28825552), (80, 25222358), (98, 20589680), (112, 18015970), (140, 14412776), (160, 12611179), (196, 10294840), (224, 9007985), (245, 8235872), (280, 7206388), (392, 5147420), (490, 4117936), (560, 3603194), (784, 2573710), (980, 2058968), (1120, 1801597), (1568, 1286855), (1960, 1029484), (3920, 514742), (7840, 257371)]