278328318

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 604558080

約数和(自身を除く): 326229762

約数列:

[1, 2, 3, 6, 17, 34, 51, 67, 102, 134, 139, 201, 278, 293, 402, 417, 586, 834, 879, 1139, 1758, 2278, 2363, 3417, 4726, 4981, 6834, 7089, 9313, 9962, 14178, 14943, 18626, 19631, 27939, 29886, 39262, 40727, 55878, 58893, 81454, 117786, 122181, 158321, 244362, 316642, 333727, 474963, 667454, 692359, 949926, 1001181, 1384718, 2002362, 2077077, 2728709, 4154154, 5457418, 8186127, 16372254, 46388053, 92776106, 139164159, 278328318]

約数ペア:

[(1, 278328318), (2, 139164159), (3, 92776106), (6, 46388053), (17, 16372254), (34, 8186127), (51, 5457418), (67, 4154154), (102, 2728709), (134, 2077077), (139, 2002362), (201, 1384718), (278, 1001181), (293, 949926), (402, 692359), (417, 667454), (586, 474963), (834, 333727), (879, 316642), (1139, 244362), (1758, 158321), (2278, 122181), (2363, 117786), (3417, 81454), (4726, 58893), (4981, 55878), (6834, 40727), (7089, 39262), (9313, 29886), (9962, 27939), (14178, 19631), (14943, 18626)]