82157420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{433}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 177176160

約数和(自身を除く): 95018740

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 179, 212, 265, 358, 433, 530, 716, 866, 895, 1060, 1732, 1790, 2165, 3580, 4330, 8660, 9487, 18974, 22949, 37948, 45898, 47435, 77507, 91796, 94870, 114745, 155014, 189740, 229490, 310028, 387535, 458980, 775070, 1550140, 4107871, 8215742, 16431484, 20539355, 41078710, 82157420]

約数ペア:

[(1, 82157420), (2, 41078710), (4, 20539355), (5, 16431484), (10, 8215742), (20, 4107871), (53, 1550140), (106, 775070), (179, 458980), (212, 387535), (265, 310028), (358, 229490), (433, 189740), (530, 155014), (716, 114745), (866, 94870), (895, 91796), (1060, 77507), (1732, 47435), (1790, 45898), (2165, 37948), (3580, 22949), (4330, 18974), (8660, 9487)]