638615748

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{24179}}^1$

素因数の和:24288

約数の個数: 48

約数和(自身を含む): 1559900160

約数和(自身を除く): 921284412

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 71, 93, 124, 142, 186, 213, 284, 372, 426, 852, 2201, 4402, 6603, 8804, 13206, 24179, 26412, 48358, 72537, 96716, 145074, 290148, 749549, 1499098, 1716709, 2248647, 2998196, 3433418, 4497294, 5150127, 6866836, 8994588, 10300254, 20600508, 53217979, 106435958, 159653937, 212871916, 319307874, 638615748]

約数ペア:

[(1, 638615748), (2, 319307874), (3, 212871916), (4, 159653937), (6, 106435958), (12, 53217979), (31, 20600508), (62, 10300254), (71, 8994588), (93, 6866836), (124, 5150127), (142, 4497294), (186, 3433418), (213, 2998196), (284, 2248647), (372, 1716709), (426, 1499098), (852, 749549), (2201, 290148), (4402, 145074), (6603, 96716), (8804, 72537), (13206, 48358), (24179, 26412)]