20157388748

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{109}}^1\times {\mathrm{3929}}^1$

素因数の和:4131

約数の個数: 72

約数和(自身を含む): 41711762400

約数和(自身を除く): 21554373652

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 109, 164, 218, 287, 436, 574, 763, 1148, 1526, 1681, 3052, 3362, 3929, 4469, 6724, 7858, 8938, 11767, 15716, 17876, 23534, 27503, 31283, 47068, 55006, 62566, 110012, 125132, 161089, 183229, 322178, 366458, 428261, 644356, 732916, 856522, 1127623, 1282603, 1713044, 2255246, 2565206, 2997827, 4510492, 5130412, 5995654, 6604649, 11991308, 13209298, 17558701, 26418596, 35117402, 46232543, 70234804, 92465086, 122910907, 184930172, 245821814, 491643628, 719906741, 1439813482, 2879626964, 5039347187, 10078694374, 20157388748]

約数ペア:

[(1, 20157388748), (2, 10078694374), (4, 5039347187), (7, 2879626964), (14, 1439813482), (28, 719906741), (41, 491643628), (82, 245821814), (109, 184930172), (164, 122910907), (218, 92465086), (287, 70234804), (436, 46232543), (574, 35117402), (763, 26418596), (1148, 17558701), (1526, 13209298), (1681, 11991308), (3052, 6604649), (3362, 5995654), (3929, 5130412), (4469, 4510492), (6724, 2997827), (7858, 2565206), (8938, 2255246), (11767, 1713044), (15716, 1282603), (17876, 1127623), (23534, 856522), (27503, 732916), (31283, 644356), (47068, 428261), (55006, 366458), (62566, 322178), (110012, 183229), (125132, 161089)]